Search Criteria: Research Area is "Cardiovascular Research"

Strains from the Research Colonies of Jackson Laboratory Scientists
New Strains Under Development

JAX® Mice Strains

Stock
Number
Strain Name
 
Phenotype
Standard Supply
002052 B6.129P2-Apoetm1Unc/J
Level 1
Mice homozygous for the Apoetm1Unc mutation show a marked increase in total plasma cholesterol levels that are unaffected by age or sex. Fatty streaks in the proximal aorta are found at 3 months of age. The lesions increase with age and progress to lesions with less lipid but more elongated cells, typical of a more advanced stage of pre-atherosclerotic lesion. Moderately increased triglyceride levels have been reported in mice with this mutation on a mixed C57BL/6 x 129 genetic background. Aged APOE deficient mice (>17 months) have been shown to develop xanthomatous lesions in the brain consisting mostly of crystalline cholesterol clefts, lipid globules, and foam cells. Smaller xanthomas were seen in the choroid plexus and ventral fornix. Recent studies indicate that APOE deficient mice have altered responses to stress, impaired spatial learning and memory, altered long term potentiation, and synaptic damage.
000651 BALB/cJ
Level 1
BALB/c mice are particularly well known for the production of plasmacytomas following injection with mineral oil forming the basis for the production of monoclonal antibodies. Although not all BALB/c substrains have been examined for plasmacytoma induction, substrains derived from the Andervont (An) lineage (which includes BALB/cByJ) typically are susceptible, while those descended from BALB/cJ are resistant (see: Potter M ,1985). Mammary tumor incidence is normally low but infection with mammary tumor virus by fostering to MMTV+ C3H mice dramatically increases tumor number and age of onset. BALB/c mice develop other cancers later in life including reticular neoplasms, primary lung tumors, and renal tumors. Rare spontaneous myoepitheliomas arising from myoepithelial cells of various exocrine glands have been observed in both BALB/cJ and BALB/cByJ substrains.

White et al. reported a variation in thioglycolate medium-induced peritoneal leukocyte recruitment in 4 analyzed s .....
For more information please see the full phenotype on the strain data sheet

000659 C3H/HeJ
Level 1
C3H/HeJ mice are used as a general purpose strain in a wide variety of research areas including cancer, immunology and inflammation, sensorineural, and cardiovascular biology. C3H/HeJ mice and all other Jackson substrains are homozygous for the retinal degeneration 1 mutation (Pde6brd1), which causes blindness by weaning age. There is also a high incidence of hepatomas in C3H mice (reportedly 72-91% in males at 14 months, 59% in virgin females, 30-38% in breeding females). Despite the lack of exogenous mouse mammary tumor virus (MMTV), virgin and breeding females may still develop some mammary tumors later in life. C3H/HeJ mice, fed an atherogenic diet (1.25% cholesterol, 0.5% cholic acid and 15% fat), fail to develop atherosclerotic aortic lesions in contrast to several highly susceptible strains of mice (e.g. C57BL/6J, Stock No. 000664; C57L/J, Stock No. 00066 .....
For more information please see the full phenotype on the strain data sheet
000664 C57BL/6J
Level 1
C57BL/6 is the most widely used inbred strain. It is commonly used as a general purpose strain and background strain for the generation of congenics carrying both spontaneous and induced mutations. Although this strain is refractory to many tumors, it is a permissive background for maximal expression of most mutations. C57BL/6J mice are used in a wide variety of research areas including cardiovascular biology, developmental biology, diabetes and obesity, genetics, immunology, neurobiology, and sensorineural research. C57BL/6J mice are also commonly used in the production of transgenic mice. Overall, C57BL/6 mice breed well, are long-lived, and have a low susceptibility to tumors. Primitive hematopoietic stem cells from C57BL/6J mice show greatly delayed senescence relative to BALB/c and DBA/2J. This is a dominant trait. Other characteristics include: 1) a high susceptibility to diet-induced obesity, type 2 diabetes, and atherosclerosis; 2) a high incidence of microphthalmia and other a .....
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000656 CBA/J
Level 1
CBA/J inbred mice are widely used as a general purpose strain. CBA/J strain is the only CBA substrain that carries the Pde6brd1 mutation, which causes blindness by wean age. CBA/J mice are not histocompatible with the CBA/CaJ (Stock No. 000654) substrain (Green and Kaufer, 1965).

The CBA/J inbred mouse strain is used to study granulomatous experimental autoimmune thyroiditis (G-EAT), are relatively resistant to diet-induced atherosclerosis (Paigen et al., 1990), and develop a mild hearing loss late in life, with most of the hearing loss occurring in the higher frequencies (Sweet et al., 1988). Renal tubulointerstitial lesions have been observed in this strain at a high frequency (Rudofsky, 1978). Some CBA/J mice spontaneously develop exocrine pancreatic insufficiency syndrome (Eppig and Leiter, 1977, Leiter et al., 1977).

000671 DBA/2J
Level 1
DBA/2J is a widely used inbred strain that is valuable in a large number of research areas, including cardiovascular biology, neurobiology, and sensorineural research. Its characteristics are often contrasted with those of the C57BL/6J inbred strain (Stock No. 000664). DBA/2J mice show a low susceptibility to developing atherosclerotic aortic lesions (20 to 350 um2 atherosclerotic aortic lesions /aortic cross-section) following 14 weeks on an atherogenic diet (1.25% cholesterol, 0.5% cholic acid and 15% fat). They also exhibit high-frequency hearing loss beginning roughly at the time of weaning/adolescence (between 3-4 weeks of age) and becoming severe by 2-3 months of age. This strain possesses three recessive alleles that cause progressive cochlear pathology initially affecting the organ of Corti. Decreasing anteroventral cochlear nucleus volume decreases and neuron loss parallel the progression of peripheral hearing loss. Young .....
For more information please see the full phenotype on the strain data sheet
000646 A/J
Level 2
Developed by LC Strong in 1921 from a cross between a Cold Spring Harbor albino and a Bagg albino, the A inbred strain is used widely used in cancer and immunology research. It is highly susceptible to cortisone-induced congenital cleft palate. It has a high incidence of spontaneous lung adenomas, and lung tumors readily develop in response to carcinogens. A high percentage of mammary adenocarcinomas (a large proportion of acinar-type) develop in multiparous females. Rare spontaneous myoepitheliomas arising from myoepithelial cells of various exocrine glands have been observed in The Jackson Laboratory substrains.

A/J mice fed an atherogenic diet (1.25% cholesterol, 0.5% cholic acid, and 15% fat) fail to develop atherosclerotic aortic lesions in contrast to several highly susceptible strains of mice (e.g. C57BL/6J, Stock No. 000664; C57L/J, Stock No. 000668, C57BR/cdJ, Sto .....
For more information please see the full phenotype on the strain data sheet

000648 AKR/J
Level 2
Originally inbred at the Rockefeller Institute, AKR mice are widely used in cancer research for their high leukemia incidence (60-90%) and in immunology as a source of the Thy1.1 (theta AKR) antigen. AKR/J mice are viremic from birth, and express the ecotropic retrovirus AKV in all tissues. The hair interior defect (hid) mutation, a strain characteristic of AKR mice, causes alterations in hair development that is only evident microscopically. Adrenocortical lipid depletion (ald) in AKR mice is caused by a mutation in sterol O-acyltransferase 1 (Soat1), and leads to a truncated SOAT1 protein. AKR/J mice are relatively resistant to aortic lesion formation on a semi-synthetic high fat diet and are hyporesponsive to diets containing high levels of fat and cholesterol.
002684 B6.129P2-Nos3tm1Unc/J
Level 2
Mice homozygous for the Nos3tm1Unc targeted mutation are viable and fertile. They have elevated blood pressure that is about 20 mmHg higher than that seen in normal wildtype siblings. They also show a decreased heart rate. Female homozygotes are smaller in body weight than normal wildtype siblings. Hyperglycemic-euglycemic clamp studies demonstrate that homozygotes exhibit insulin resistance at the level of the liver and peripheral tissues.
002207 B6.129S7-Ldlrtm1Her/J
Level 2
Mice homozygous for the Ldlrtm1Her mutation have an elevated serum cholesterol level of 200-400 mg/dl and they have very high levels (>2,000 mg/dl) when fed a high fat diet. Normal serum cholesterol in the mouse is 80-100 mg/dl.
000686 SJL/J
Level 2
SJL mice display a very high incidence of reticulum cell sarcomas resembling Hodgkin's disease by approximately one year of age. Sarcomas first appear in the Peyer's patches and mesenteric lymph nodes and later in the spleen, liver, thymus and other lymph nodes. Most of the tumors are mixed-cell types classified as type B reticulum cell neoplasms, but a few are type A histiocytomas. This strain is also characterized by extreme aggression in males and its susceptibility to experimental autoimmune encephalomyelitis (EAE) for multiple sclerosis research. SJL/J mice develop a spontaneous myopathy resulting from a splice-site mutation in the Dysferlin gene. This Dysfim allele has been shown to result in decreased levels of dysferlin protein in SJL/J mice and makes this strain a good model for limb girdle muscular dystrophy 2B. This spontaneous myopathy is characterized by a progressive loss of muscle mass and strength corresponding with an increase in muscle pathology incl .....
For more information please see the full phenotype on the strain data sheet
002810 B6CBA-Tg(HDexon1)62Gpb/1J
Level 3
This line is transgenic for the 5' end of the human HD gene carrying (CAG)115-(CAG)150 repeat expansions. The transgene is ubiquitously expressed. Transgenic mice exhibit a progressive neurological phenotype that mimics many of the features of HD, including choreiform-like movements, involuntary stereotypic movements, tremor, and epileptic seizures, as well as nonmovement disorder components, including unusual vocalization. They urinate frequently and exhibit loss of body weight and muscle bulk through the course of the disease. Neurologically they develop Neuronal Intranuclear Inclusions (NII) which contain both the huntingtin and ubiquitin proteins. Previously unknown, these NII have subsequently been identified in human HD patients. The age of onset of HD symptoms is reported to occur between 9 and 11 weeks. Commonly known as the "R6/2" strain.

Transgenic mice develop hyperglycemia by 12 weeks of age with a corresponding decrease in insulin levels. Pancreatic beta cells develop .....
For more information please see the full phenotype on the strain data sheet

006494 B6CBA-Tg(HDexon1)62Gpb/3J
Level 3
This line is transgenic for the 5' end of the human HD gene carrying less than (CAG)150 repeat expansions. The transgene is ubiquitously expressed. Transgenic mice exhibit a progressive neurological phenotype that mimics many of the features of HD, including choreiform-like movements, involuntary stereotypic movements, tremor, and epileptic seizures, as well as nonmovement disorder components, including unusual vocalization. They urinate frequently and exhibit loss of body weight and muscle bulk through the course of the disease. Neurologically they develop Neuronal Intranuclear Inclusions (NII) which contain both the huntingtin and ubiquitin proteins. Previously unknown, these NII have subsequently been identified in human HD patients. The age of onset of HD symptoms is reported to occur between 9 and 11 weeks. Commonly known as the "R6/2" strain.

Transgenic mice develop hyperglycemia by 12 weeks of age with a corresponding decrease in insulin levels. Pancreatic beta cells develop .....
For more information please see the full phenotype on the strain data sheet

001927 C57BL/6-Tg(APOA1)1Rub/J
Level 3
Mice carrying the human apolipoprotein A-I transgene show a two fold increase in total plasma cholesterol levels and greater than a four fold decrease in the levels of mouse apoAI. Homozygous transgenic mice exhibit reduced susceptibility to diet induced fatty streak lesions. Mice homozygous for the transgenic insert are viable, fertile and normal in size. This human apolipoprotein AI transgene is under the control of its natural promoter. The Jackson Laboratory imported mice derived from the founder line A2 as described in Rubin EM, et al., 1991.
000689 SWR/J
Level 3
SWR/J mice are used widely in research as a general purpose strain. Aging mice exhibit a high incidence of lung and mammary gland tumors. They also develop extreme polydipsia and polyuria (nephrogenic diabetes insipidus) with increasing age. SWR/J mice are highly susceptible to experimental allergic encephalomyelitis (EAE). Germline deletion of about 50% of T-cell receptor V beta-chain gene segments and a T-cell receptor V alpha polymorphism are responsible for the resistance of SWR/J mice to collagen type II-induced arthritis. SWR/J mice show an intermediate susceptibility to developing atherosclerotic aortic lesions (1670 to 1690 um2 atherosclerotic aortic lesions/aortic cross-section) following 14 weeks on an atherogenic diet (1.25% cholesterol, 0.5% cholic acid and 15% fat). SWR/J mice have been recommended for generation and propogation of transgenic mice because they are high responders to exogenous hormones, have large and prominant pronuclei with good resistance to l .....
For more information please see the full phenotype on the strain data sheet
000690 129P3/J
Level 4
Historically, the 129 inbred mice are known for the high incidence of spontaneous testicular teratomas, though the incidence differs between substrains. (1-3% in 129 parental substrains; 30% in teratoma substrains.) More recently, 129 mice are widely used in the production of targeted mutations due to the availability of multiple embryonic stem cell lines derived from them. There is major genetic variation within the 129 "family", which has led to an update of the nomenclature and a division of the substrains into three major groups: parental substrains (129P), steel substrains (129S) and "teratoma" substrains (129T). Investigators using 129 substrains for targeted mutagenesis should be careful in the selection of the appropriate 129 substrain to match the embryonic stem cell line. For a complete history of the numerous 129 substrains, see Simpson, et al., 1997.
003008 B6;129S-Tnftm1Gkl/J
Level 4
Mice homozygous for the Tnftm1Gkl targeted mutation are viable and fertile. Development of both lymph nodes and Peyer's patches is normal, and homozygous mutant mice show no apparent phenotypic abnormalities. Homozygous mice completely lack splenic primary B cell follicles and cannot form organized follicular dendritic cell networks and germinal centers. TNF-deficient mice treated to induce skin carcinogenesis develop significantly less benign and malignant tumors than treated wildtype mice. Nonobese homozygous mutant mice show modest decreases in body weight, epididymal fat depot weight, and percent body fat (statistically significant in males at 28 weeks of age). Further characterization indicates that 28 week old male mutant mice display lower insulin, triglyceride, and leptin levels compared to wildtype controls. Characterization of TNF deficient homozygotes injected with gold-thioglucose (GTG) to induce hyperphagic obesity indicates that the presence of TNF does .....
For more information please see the full phenotype on the strain data sheet
000629 C57BL/6J-Lystbg-J/J
Level 4
Mice homozygous for the beige-J spontaneous mutation (Lystbg-J) are identical to the original beige mutation (Lystbg). The phenotype closely resembles Chediak-Higashi disease in man and similar conditions in mink and cattle. Abnormal giant lysosomal granules occur in all tissues with granule-containing cells, including granulocytes, lymphocytes, cells of the liver, kidney, central nervous system, pancreas, and thyroid, and the ducts of most glands; in type II pneumocytes; in mast cells; and in retinal pigment epithelium. Granulocytes from beige homozygous mutant mice mice show defective chemotaxis and reduced bactericidal activity. Beige mice are more susceptible than controls to pneumonitis and to various viral, bacterial, and parasitic infections. Natural killer (NK) cells from beige mice exhibit decreased endogenous cytotoxic activity. Beige mice also have a defective cytotoxic T-cell and cytotoxic antibody response to allogeneic tumor cells. Syn .....
For more information please see the full phenotype on the strain data sheet
000684 NZB/BlNJ
Level 4
NZB/BlNJ mice display a number of autoimmune abnormalities including hemolytic anemia, elevated levels of immunoglobulin, anti-DNA antibodies, anti-thymocyte antibodies, and circulating immune complexes causing glomerulonephritis. F1 hybrids of NZB/BlNJ and NZW/LacJ (NZBWF1/J, Stock No. 100008) are widely used as a model for autoimmune disease resembling human systemic lupus erythematosus. NZB/BlNJ mice, fed an atherogenic diet (1.25% cholesterol, 0.5% cholic acid and 15% fat), fail to develop atherosclerotic aortic lesions in contrast to several highly susceptible strains of mice (e.g. C57BL/6J, Stock No. 000664; C57L/J, Stock No. 000668, C57BR/cdJ, Stock No. 000667, and SM/J, Stock No. 000687).
000687 SM/J
Level 4
SM/J mice carry a number of rare polymorphic alleles and are often matched to LG/J (Stock No. 000675), A/J (Stock No. 000646) or NZB/BINJ (Stock No. 000684) for quantitative trait locus analysis. These mice are susceptible to diet-induced obesity and diet-induced atherosclerosis. SM/J mice exhibit a hyperresponsiveness to B cell mitogens (Clark et al. 1981, Engel et al. 1981). A point mutation in Neu1 is responsible for a partial deficiency of lysosomal neuraminadase and may explain the altered immune response (Rottier et al. 1998). Small in size at birth and through weaning, SM/J mice attain a normal body weight as they age.
003658 STOCK Tg(TIE2GFP)287Sato/J
Level 4
This strain expresses Green Fluorescent Protein (GFP) under the direction of the endothelial-specific receptor tyrosine kinase (Tek, formerly, Tie2) promoter. Endothelial cells expressing GFP can be visualized via fluorescent microscopy or purified by FACS.
006050 129-Sirt6tm1Fwa/J
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Homozygous neonates are smaller than their wildtype and heterozygous littermates. They develop normally until approximately 21 days of age, when they develop an acute and rapid, aging-like degenerative pathology resulting in death by postnatal day 24. Homozygous mutant mice exhibit subcutaneous fat loss, lordokyphosis (hunchbacked spine) with osteopenia (30% loss of bone mineral density), colitis, and severe lymphopenia due to increased lymphocyte apoptosis. At day 12, mice have reduced insulin-like growth factor I (IGF-1) levels in serum, and develop severe hypoglycemia. Mouse embryonic fibroblasts (MEFs) prepared from homozygous embryos exhibit reduced proliferation, defective base excision repair function, as indicated by increased sensitivity to alkylating agents and ionizing radiation, and increased chromosomal aberrations. The donating investigators report that no gene product (mRNA or protein) is detected by RT-PCR or immuoblot analysis of tissues, MEFs or embryonic stem cells f .....
For more information please see the full phenotype on the strain data sheet
007175 129S-Cyp4a14tm1Jhc/J
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Mice homozygous for this "Cyp 4a14" mutant allele are viable and fertile. Homozygous deficiency of the targeted gene leads to spontaneous hypertension (more severe in males) that is androgen-sensitive. Homozygotes also exhibit other interrelated metabolic and regulatory effects; increased renal vascular resistance, impaired renal hemodynamics, elevated plasma androgens (5a-dihydrotestosterone (DHT) and testosterone), upregulated Cyp4a12 gene expression, and increased formation of prohypertensive 20-HETE. These "Cyp 4a14" mutant mice may be useful studying kidney function and metabolism, cardiovascular physiology, hypertension, and the relationships between blood pressure, sex hormones, and p450 w-hydroxylases.
007205 129S-Myo1eGt(ROSA)74Sor/J
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Homozygous embryos E11.5 to E18.5 exhibit hemorrhages and microaneurisms. Vascular defects persist into adulthood. At 6 weeks of age, mice are anemic (low hemoglobin concentration, red blood cell count, hematocrit). These mice also exhibit polychromasia (abnormally high number of immature blood cells). Homozygotes occur at lower than Mendelian ratio (15%). Although homozygotes are fertile, pregnancy is occasionally lethal for homozygous females. Heterozygotes are viable and fertile. No gene product is detected in homozygous embryos aged ED9.5-12.5 or in adult gonad. These Myo1e-mutant mice may be useful in studying vascular development, hematopoiesis and cellular signaling during development and in adult mice; specifically receptor tyrosine kinases (RTK; such as Ras, MAP kinase, PI3K and those in the platelet-derived growth factor (PDGF) family) and immediate early genes (IEG) induced shortly after RTK activation.
007005 129S-Scg5tm1Led/J
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The following text reflects the phenotype reported by the donating investigator on a "129Sv" genetic background (probably "Taconic Sv129" (129S6/SvEvJ)). While heterozygotes are viable and fertile, mice homozygous for this mutation (7B2-null) die in prepubertal or pubertal ages (5 weeks) with severe cardio-respiratory failure, convulsions, and hypothermia. No transcripts are detected in brain tissue from the targeted gene. 7B2 null mice are unable to make an active form of prohormone convertase 2 (PC2) and have high circulating corticosterone. Homozygotes on the 129S genetic background exhibit Cushing's-like disease pathologies of liver, pancreas, and pituitary; including pituitary-dependent hyperadrenocorticosteronism, severe hypoglycemia, hyperproinsulinemia, adrenal hypertrophy, pituitary hypotrophy, and altered islet cell morphology. 7B2-null mice develop the disease from intermediate lobe ACTH hypersecretion (rather than from pituitary adenomas). Other abnormalities include thinni .....
For more information please see the full phenotype on the strain data sheet
007199 129S-Sgpl1Gt(ROSA)78Sor/J
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Mice homozygous for this mutant allele have reduced size and weight gains after birth and do not survive past 8 weeks of age. Homozygotes occur at a lower than Mendelian ratio (19%) from heterozygote X heterozygote crosses. No gene product is detected in homozygous embryos aged ED9.5-12.5 or in adult gonad. Beta-galactosidase staining pattern mimics the endogenous gene expression pattern in adult intestinal epithelial cells. Homozygous embryos E11.5 to E18.5 exhibit hemorrhages and microaneurisms. Vascular defects persist into adulthood. At 6 weeks of age, mutant mice are anemic (low hemoglobin concentration, reduced red blood cell count, low hematocrit). Mutants exhibit polychromasia (abnormally high number of immature blood cells), kidney defects (blood urea nitrogen level abnormally high, kidney size smaller than wildtype, swollen blood filled glomeruli, reduced number of vascular smooth muscle cells) and abnormalities in palate bone fusion. Homozygotes are infertile. Heterozygote .....
For more information please see the full phenotype on the strain data sheet
001649 A.BY H2bc H2-T18f/SnJ-Dstncorn1/J
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Mice homozygous for the recessive Dstncorn1 mutation have abnormally proliferative basal corneal epithelial cells. Focal areas of corneal epithelial hyperplasia are found by one week of age, and neovascularization is found by 14 days of age when the eyes open. This neovascularization, which progresses during the first two months of age, is not found in mice homozygous for the Dstncorn-2J allele (which is a point mutation leading to a change in a single amino acid residue). In both mutants the corneal epithelial cells show increased levels and altered organizational pattern of filamentous actin. The areas of thickened cortical epithelia yield a roughened, opaque corneal surface.

At 4 weeks of age in Dstncorn1 homozygotes, expression of keratin 14 and involucrin extend into the suprabasal layer in the areas of hyperplastic corneal epithelia. There is also an increase in the levels of expression of cofilin 1, lumican and kerat .....
For more information please see the full phenotype on the strain data sheet

005704 B6.129-Fbn1tm2Rmz/J
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Both heterozygous and homozygous "mgR" mutant mice are viable with no phenotypic abnormalities at birth. The protein expressed from this mutant allele is the same size as wild-type. Skin tissues show an intermediate reduction in transcript levels compared to wild-type and the mg-delta null allele. Thus the "mgR" mutation does not completely ablate gene function (resulting in rapid death). Instead, expression is hypomorphic and conducive to studying the clinical stages precursive to animal lethality. Homozygotes develop medial calcification, the inflammatory-fibroproliferative response, and inflammation-mediated elastolysis in the natural history of dissecting aneurysm and die between 2-6 month of age with Marfan syndrome (MFS)-like manifestations.
006860 B6.129-Ins2Akita Bdkrb2tm1Jfh/SmiJ
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Mice homozygous for the targeted mutation and heterozygous for the Akita spontaneous mutation are viable and fertile. Similar to mice only heterozygous for the Akita mutation, the double mutant mice are severely diabetic: their body weights are 70% of wildtype, they consume over 3-fold the normal amount of food, and their urinary output is approximately 20-fold more than that of wildtype mice. Double mutant mice have markedly enlarged kidneys. Urinary albumin excretion in double mutants is almost 4-fold that of either single mutant, and double mutants experience more severe nephropathy than mice that are heterozygous for the Akita mutation alone. Megsin and nephrin expression is markedly increased in double mutant mice when compared to wildtype or to mice with either single mutation alone. By 12 months of age, double mutant mice experience hair loss due to a reduction in hair follicle numbers and thinning of the dermis. Double mutants have essentially no subcutaneo .....
For more information please see the full phenotype on the strain data sheet
006201 B6.129-Scd1tm1Ntam/J
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Homozygous mice are viable and fertile. Transcripts from the targeted gene are absent in homozygous liver, eyelid, skin, and white adipose tissues. In addition, the endogenous protein and enzyme activity are absent from homozygous liver tissue. Homozygous mice exhibit cutaneous abnormalities and narrow eye fissure with atrophic sebaceous and meibomian glands. Mutant mice also have reduced body adiposity, increased insulin sensitivity, increased basal and insulin-mediated glucose uptake, and are resistant to diet-induced weight gain. Homozygotes have altered hepatic glycerophospholipid profiles. Homozygous mice are not recommended for breeding as skin lesion severity may prohibit colony success. These mutant mice may be useful in studies of monounsaturated fatty acid synthesis, cholesterol homeostasis, skin disease, obesity, and diabetes.

In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background differ .....
For more information please see the full phenotype on the strain data sheet

006879 B6.129-Scd2tm1Myz/J
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While heterozygous mice are viable and fertile, mice homozygous for this targeted allele die within 24 hours of birth. Brain tissues from homozygous mice show no expression from the targeted gene. Homozygotes exhibit neonatal lethality with 100% penetrance on this genetic background (less penetrant on 129SvEv genetic background) likely due to severe skin permeability barrier abnormalities. Null mice also have abnormal epidermal morphology and abnormal lipid homeostasis in the skin and liver. These mutant mice may be useful in studying monounsaturated fatty acid synthesis, lipid biosynthesis and metabolism, cholesterol homeostasis, and skin disease, as well as obesity and diabetes.
006336 B6.129-Selplgtm1Rpmc/J
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Mice that are homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. No gene product (protein) is detected by flow cytometry analysis of leukocytes. Homozygotes have elevated total leukocyte counts, with increased numbers of neutrophils, lympohcytes and eosinophils. Leukocytes isolated from homozygotes exhibit abnormal tethering and rolling (adhesion and migration) due to impaired attachment. This mutant mouse strain represents a model that may be useful in studies of leukocyte adhesion and migration in the inflammatory response.

This strain was transferred from the collection of the Consortium for Functional Glycomics.
007453 B6.129P2(Cg)-Dhcr7tm1Gst/J
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Mice homozygous for the Dhcr7Ex8 allele lack the exon 8 coding sequence and flanking splice acceptor site of the targeted gene, resulting in the truncated DHCR7 mutation most frequently observed in Smith-Lemli-Opitz/RSH Syndrome (SLOS) patients (IVS8-1G > C). Although a truncated product is transcribed from the targeted gene, no mRNA containing the deleted 3'-coding region is detected in homozygous liver or brain tissue. Homozygous mice exhibit the same biochemical defects as observed with SLOS patients, including markedly reduced tissue cholesterol and total sterol levels, and 30- to 40-fold elevated concentrations of 7-dehydrocholesterol. Newborn homozygotes have difficulty breathing, do not suckle, and die soon after birth with immature lungs, enlarged bladder, and, frequently, cleft palate. These Dhcr7Ex8 mutant mice may be useful in studying Smith-Lemli-Opitz/RSH Syndrome (SLOS; a birth-defect mental-retardation syndrome) or other metabolic disorders involved > .....
For more information please see the full phenotype on the strain data sheet
005775 B6.129P2-Adipor2tm1Dgen/J
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This targeted mutant was created and characterized by Deltagen, Inc. View phenotypic data developed by Deltagen.
002682 B6.129P2-Agtr1atm1Unc/J
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Mice homozygous mice for the targeted mutation are viable and fertile. Pressor responses to angiotensin II infusions are absent and blood pressure levels are ~24 mmHg lower than normal wildtype siblings. Heterozygous mice have blood pressure levels ~12 mmHg lower than normal wildtype siblings and show qualitatively altered responses to angiotensin II infusions.
002055 B6.129P2-Apoa1tm1Unc/J
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Mice homozygous for the Apoa1tm1Unc targeted mutation have no APOA1 protein in their plasma. They have severely reduced levels of plasma cholesterol and HDL-cholesterol after overnight fasting. They also show a deficiency in alpha-migrating HDL particles. The Apoa1tm1Unc mutant mice appear to develop normally.
002053 B6.129P2-Apobtm1Unc/J
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The Apobtm1Unc targeted mutation produces a truncated form of the apolipoprotein B protein (APOB70)and no apoB100 that is similar to human familial hypobetalipoproteinemia condition. Expression of apoB48 is not altered. Homozygous mice show greatly reduced levels of plasma APOB, beta-lipoproteins, and total cholesterol. They also have reduced plasma triglyceride concentrations, fasting chylomicronemia, and reduced high density lipoprotein (HDL) cholesterol. Homozygotes also have a high incidence of exencephaly and hydrocephaly. Heterozygous mice show a slight increase over wildtype in the incidence of hydrocephaly.
005960 B6.129S-Pecam1Gt(VICTR20)12Lex/J
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Mice that are homozygous for the gene-trapped allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. No gene product (protein) is detected by immunofluorescence in aorta endothelium from homozygotes, and endothelial nitric oxide synthase isoform (eNOS) is not detected in cell to cell junctions between aorta endothelial cells in these mice. Isolated skeletal muscle arterioles from homozygous mutant mice exhibit reduced vessel dilation and no significant change in wall shear stress responses when intraluminar flow is increased. This mutant mouse strain may be useful in studies of cellular adhesion, vascular integrity and physiology.
005540 B6.129S-Tnftm1Gkl/J
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Mice homozygous for the targeted mutation are viable and fertile. Development of both lymph nodes and Peyer's patches is normal, and homozygous mutant mice show no apparent phenotypic abnormalities. Homozygous mice completely lack splenic primary B cell follicles and cannot form organized follicular dendritic cell networks and germinal centers. TNF-deficient mice treated to induce skin carcinogenesis develop significantly less benign and malignant tumors than treated wildtype mice. Nonobese homozygous mutant mice show modest decreases in body weight, epididymal fat depot weight, and percent body fat (statistically significant in males at 28 weeks of age). Further characterization indicates that 28 week old male mutant mice display lower insulin, triglyceride, and leptin levels compared to wildtype controls. Characterization of TNF deficient homozygotes injected with gold-thioglucose (GTG) to induce hyperphagic obesity indicates that the presence of TNF does not affect the degree of obe .....
For more information please see the full phenotype on the strain data sheet
006233 B6.129S1-Casp3tm1Flv/J
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On this C57BL/6 congenic background, homozygotes are viable, fertile, and reach adulthood, but females reported display suboptimal mothering instincts. Functional endogenous protein and mRNA are absent from all tissues tested. Homozygous mice are resistant to in vivo cerebral ischemia/reperfusion and in vitro oxygen-glucose deprivation. Ovaries from female homozygotes show aberrant atretic follicles associated with a granulosa cell-intrinsic defect in apoptosis as well as defective corpus luteum regression. Homozygous mice are congenitally deaf with hair cell defects in the Organ of Corti. Optic lens formation/morphology also is abnormal with cataracts at the anterior lens pole. Of note, these mice lack the embryonic/perinatal-lethal brain pathology observed in mutant mice on the 129 and mixed B6;129 genetic backgrounds. These mutant mice may be useful in studies of apoptosis, ovarian follicle and corpus luteum development, and eye and ear development.
005940 B6.129S1-Csf2rbtm1Cgb/J
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Homozygous mice are viable and fertile with no behavioral abnormalities. In response to GM-CSF, bone marrow and splenocytes from homozygous mice fail to exhibit proliferation, enhanced survival in vitro, or synergistic interaction with M-CSF. They also fail to proliferate in response to IL-5. IL-3 binding and responses are unaffected. Cell composition in thymus, spleen, bone marrow, and lymph node is not significantly altered. Circulating eosinophils are dramatically reduced in blood with lesser reduction in bone marrow and tissues. Homozygous mice develop pulmonary peribronchovascular lymphoid infiltrates and areas resembling pulmonary alveolar proteinosis (PAP). Consistent with this, mutant mice have greatly increased surfactant protein-B and D accumulation in lung/airway tissue, no attenuation of saturated phosphatidylcholine with advancing age, and high levels of GM-CSF in bronchoaveolar lavage fluid. Homozygous mice are resistant to intradermal Leishmania major infection an .....
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006221 B6.129S1-Lyve1tm1Lhua/J
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Homozygotes are viable and fertile, and produce normal-sized litter. No gross phenotypic or behavioral abnormalities have been reported, even in older (2 year old) mice. Homozygous mutants express neither endogenous RNA or protein in liver tissue. Lymphatic capillary vessel morphology in the liver and intestines of homozygous mice is abnormal, with vessels having distended or rounded lumens in contrast to the smaller, typically collapsed, irregular shapes observed in wildtype controls. Intradermal interstitial-lymphatic flow also is increased. Syngenic tumor cell transplants into grow more rapidly and robustly in homozygous mutant mice compared with transplants into wildtype mice, and develop porous interstitial spaces. These mutant mice may be useful in studies of structural and functional characteristics of the lymphatic system, cell-surface retention sequence (CRS) motif-containing growth factor secretion, autocrine and paracrine regulation of cell growth, as well as of cancer and t .....
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002778 B6.129S2-Alox15tm1Fun/J
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Homozygous (12/15-LO-deficient) mutant mice are viable and fertile. 12/15-LO-deficient mice develop a myeloproliferative disorder (MPD) (similar to human chronic myelogenous leukemia (CML)) that progresses to transplantable leukemia. Chronic MPD stage homozygotes exhibit increased activation of the phosphatidylinositol 3–kinase (PI3-K) pathway, hyperphosphorylation/decreased nuclear accumulation of the transcription factor interferon consensus sequence binding protein (ICSBP), and increased expression of the oncoprotein Bcl-2; all of which are reversible upon treatment with a PI3-K inhibitor. The evolution of MPD to leukemia is associated with additional regulation of ICSBP at the RNA level. Peritoneal macrophages have altered arachidonic acid metabolism as well as a diminished ability to oxidize low density lipoprotein (LDL) following stimulation. These mutant mice may be useful in studying myeloproliferative disorders, chronic myelogenous leukemia, and other cancers.
006141 B6.129S2-Thbs1tm1Hyn/J
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Mice homozygous for this targeted mutation are viable and fertile, with an approximate 20% decrease in embryo/neonate viability and a mild and variable lordotic curvature of the spine apparent from birth. Homozygous mice have an abnormal, but no full length transcript in multiple tissues. Western analysis confirmed the absence of the protein in platelets. Homozygotes exhibit an increase in the number of circulating white blood cells. During the first four to ten weeks of life, homozygotes exhibit patches of acute and organizing pneumonia. At later time points, there is considerable hyperplasia of the various epithelial cell lineages. Mutant mice also have an increased number of retinal endothelial cells and inappropriate remodeling and maturation of retinal vasculature following injury. On the FVB/N background, spontaneous tumor growth and vasculature are significantly increased compared to wildtype. Mutant mice may be useful in studies of inflammatory responses in the lungs, eye, and .....
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006503 B6.129S4-Lpltm1Ijg/J
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These mice possess loxP sites on either side of exon 1 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele. These mice may be useful for cardiovascular studies (such as lipid metabolism and fat storage) and obesity research.
006122 B6.129S4-Mbl1tm1Kata Mbl2tm1Kata/J
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Mice homozygous for both mannose-binding lectin (MBL)-A and MBL-C targeted mutations (termed MBL-null) are viable, fertile, and normal in size with no obvious developmental defects. Histological examination of multiple organs from 6-10 week old mice shows no abnormalities. MBL-null mice have no endogenous gene expression in liver (the principal site of MBL synthesis) and no protein detectable in serum. While the classical complement pathway is unaffected in MBL-null mice, the lectin-dependent complement pathway is non-functional. MBL-null mice have increased mortality following intravenous injection of S. aureus associated with abnormal serum levels of TNFalpha and IL-6 (decreased at 2h, elevated at 24h post injection). Cyclophosphamide-induced febrile neutropenic MBL-null mice inoculated with S. aureus have greatly increased susceptibility to abscess formation in kidney, liver, and lung (but not spleen). These same treated mice also have persistent bacteremia despite a r .....
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007809 B6.129S4-Mc3rtm1Cone/J
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Mice that are homozygous for the targeted mutation are viable and fertile. Female homozygotes at approximately 50 to 60 days of age exhibit significantly heavier body weight when compared to heterozygotes. No gene product (mRNA) is detected by RT-PCR analysis of hypothalamus tissue. Male homozygotes exhibit an approximately 40% increase in body fat at 15-20 weeks of age when compared to wildtype. Heterozygotes display an intermediate increase in body fat percentage of approximately 36%. Although homozygotes have increased adiposity, there is no increased food intake or weight gain and resting basal or total oxygen consumption is lower in mutant mice when compared to wildtype. High fat diet causes an increased respiratory quotient within 24 hours of the diet change. Homozygotes on a low fat diet have a lower respiratory quotient than wildtype. Male homozygotes exhibit an approximately 50% decrease in wheel running behavior. Mutant mice become hypertensive with increased gamma-melanocyt .....
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005897 B6.129S4-Ppardtm1Rev/J
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These mice possess loxP sites on either side of exon 4 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice with a cre recombinase gene under the control of a promoter of interest, exon 4 of the targeted gene is deleted in the tissue of interest, leading to premature termination of the translation product upstream of the DNA binding domain. This strain may be useful in generating tissue-specific mutants of the floxed allele for use in studies including embryo development, adipocyte physiology, fat metabolism and storage, inflammation, and cancer.
006243 B6.129S4-Timp1tm1Pds/J
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Homozygous females and hemizygous males (the gene is X-linked) are viable and fertile. No endogenous transcript is detected in lung tissue from affected mice by Northern blot analysis.. Homozygous mice have increased resistance to corneal and pulmonary infection with P. aeruginosa, and have altered immune, hematopoietic, and vascular permeability in bleomycin-induced lung injury trials. Homozygotes also show increased and continued progression of aneurysm formation compared with wild-type mice in induced thoracic aortic aneurysm (TAA) models. Mice with this X-linked targeted mutation may be useful in studies of cornea and pulmonary infection, pulmonary injury and aneurysm, as well as of P. aeruginosa resistance in individuals with unresolved, antibiotic-resistant pulmonary infections, such as those often observed in cystic fibrosis patients.

In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genet .....
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006133 B6.129S4-Vdrtm1Mbd/J
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Heterozygous mice are phenotypically indistinguishable from wildtype siblings. Homozygous mice are viable and fertile with normal survival until approximately 14 months. RNA isolated from the intestine and kidney show a truncated deletion of the second zinc finger coding region followed by a premature termination codon, resulting in the absence of receptor protein. Homozygous mice exhibit an identical phenotype as the human disease hereditary vitamin D-dependent rickets type II (HVDDR). As early as 21 days of age, mutant mice demonstrate hypocalcemia, hypophosphatemia, hyperparathyroidism, increased serum parathyroid hormone, abnormal blood mineral levels, and growth retardation. At 4 weeks of age, homozygous mice exhibit perioral and periorbital alopecia that progresses over the entire body by 4 months of age. Rickets and osteomalacia develop by 35 days. Homozygous mice have increased bone fragility and other skeletal abnormalities. Introducing a diet enriched for calcium, phosphorus, .....
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006878 B6.129S6-Taglntm2(cre)Yec/J
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Mice homozygous for this SM22alpha-CreKI allele are viable and fertile. These mice have a Cre-recombinase gene inserted into the endogenous transgelin (SM22alpha) locus. The donating investigator reports that this mutation results in a loss of function of the targeted gene. Cre recombinase activity is shown in adult smooth muscle cells (such as arteries, veins, and visceral organs) and cardiac myocytes, but activity is not observed in the same embryonic tissues. These SM22alpha-CreKI mice may be useful for Cre-lox technology applications in studying smooth muscle and cardiac gene function, as well as cardiovascular disease.
008039 B6.129S7-Gja1tm1Dlg/J
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Mice homozygous for this Cx43flox conditional allele are viable and fertile, with loxP sites flanking exon 2 of the targeted gene. Presence of the loxP sites has no reported affect on expression of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have exon 2 deleted in the cre-expressing tissue(s). These Cx43flox mutant mice may be useful in generating conditional mutations for studying the role of connexin and gap junctions in various tissues and systems, including the cardiovascular system.
007682 B6.129X1-Apobtm1.1Zc/J
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Mice homozygous for this apoB38.9 allele (apoB38.9/38.9) are viable with impaired fertility, bearing a premature stop codon at residue 1767 of the targeted gene. As a result, homozygous plasma shows a truncated apoB38.9 as the sole apoB protein. Plasma from heterozygous (apoB+/38.9) mice have reduced apoB100 and apoB48 compared to wildtype, with apoB38.9 representing 20% of total circulating apoB. This apoB38.9 truncation affects both apoB100 and apoB48 metabolism in mice, and mimics human Familial Hypobetalipoproteinemia (FHBL). Homozygous and, to a lesser extent, heterozygous mice exhibit symptoms of FHBL due to impaired lipoprotein export system/VLDL secretion, including elevated hepatic triglyceride (TG), cholesterol and free fatty acids (FFA), with decreased plasma TG and cholesterol. Because plasma and liver lipid profiles range from mild to severe in populations of heterozygous apoB38.9 mice on a mixed (C57BL/6J;129X1/SvJ) genetic background, apoB+/38 .....
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006112 B6.129X1-Ela2tm1Sds/J
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Homozygous mice are viable, fertile and phenotypically normal in the absence of inflammatory stress. Homozygotes do not express the targeted gene in bone marrow myeloid cells. Homozygous mice have increased susceptibility to sepsis, morbidity, and mortality following intraperitoneal injection of Gram-negative (e.g. (K. pneumoniae and E. coli), but not Gram-positive (e.g. (S. aureus), bacteria. Despite this, mutant mice are not at increased risk to spontaneous infection. Although neutrophil, T cell, and macrophage migration/recruitment to the site of infection is unaffected in homozygous mutant mice, neutrophils show impaired bactericidal activity. Further, homozygous mice treated with a broad-spectrum inflammatory stimulus (zymosan) have impaired leukocyte firm adhesion and transmigration as well as reduced pro-inflammatory cytokine production. Upon exposure to cigarette smoke, homozygous mice are protected from the accumulation of neutrophils and macrophages in th .....
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004265 B6.129X1-Mpotm1Lus/J
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Mice that are homozygous null for the targeted gene are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. No Mpo gene product (mRNA or protein) is detected. Mutant mice exhibit total white blood cell counts and differentials similar to wildtype mice. Neutrophils and monocytes in periperhal blood and bone marrow have no endogenous peroxidase activity. Superoxide production levels in peritoneal exudate cells of mutant mice are similar to levels found in wildtypes mice. Hypochlorous acid production is undetectable in both isolated leukocytes and peritoneal exudate cells. Mutant mice display impaired fungicidal activity due to myeloperoxidase deficiency. When maintained under hyperlipidemic conditions, mutant mice develop atherosclerotic lesions 50% larger than those seen in control mice.
000002 B6.C3-Pde6brd1 Hps4le/J
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006952 B6.Cg-Akt2tm1.1Mbb Ldlrtm1Her/J
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Independently, homozygous Akt2 mutant mice develop insulin resistance and diabetes, while LDLR homozygotes are predisposed to atherosclerosis. Double mutant mice that are heterozygous for the Akt2 allele and homozygous for the LDLR mutation are viable and fertile. These double mutant mice may be useful in studies of diabetes, metabolism, hyperglycemia, and atherosclerosis.
007083 B6.Cg-Cav1tm1Mls/J
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Mice that are homozygous for the targeted mutation are viable, fertile and do not display any gross physical abnormalities. Mutant mice exhibit exercise intolerance when challenged and are slightly hyperphagic. No gene product (protein) is detected by Western blot analysis in adipose, lung and heart tissues or in cultured mouse embryonic fibroblasts (MEFs). A decrease in the level of co-expressed caveolin-2 protein is immunodetected. At age 4-5 months, mutant mice are often smaller than their wildtype littermates. By one year of age, mutant mice weigh 5 to 7 grams less than wildtype, and are resistant to diet-induced obesity. Progressive adipose pathology results in reduced white adipose tissue with abnormally small adipocytes and enlarged, hyperplastic brown adipose tissue. Homozygotes display lipid metabolism and uptake disruption with elevated serum triglycerides and free fatty acid levels, and reduced leptin levels. Isolated aortic tissue segments have a diminished vasoconstriction .....
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006580 B6.Cg-Ins2Akita Ldlrtm1Her/J
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Mice homozygous for the Akita spontaneous mutation die postnatally, typically by 12 weeks of age. Independently, heterozygous Akita mutant mice are a model of insulin dependent diabetes mellitus (IDDM) with severe hyperglycemia (see the datasheet for Stock No. 003548 for additional information). LDLR-null homozygotes have elevated serum cholesterol levels (200-400 mg/dl) which can escalate to very high levels (> 2000 mg/dl) when the mice are fed a high fat diet. LDLR-deficient mice also are predisposed to develop atherosclerosis. These double mutant mice may be useful in studies of diabetes, metabolism, hyperglycemia, atherosclerosis, hypercholesterolemia, and diabetes-related macrovascular complications.
006883 B6.Cg-Ldlrtm1Her Sod2tm1Leb/J
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Independently, mice that are homozygous for this MnSOD mutation (Sod2tm1Leb) allele exhibit postnatal lethality and exhibit anemia, degeneration of neurons in the basal ganglia and brainstem, progressive motor disturbances, and myocardial injury. Individual LDLR homozygous mutants are predisposed to atherosclerosis. When mutant mice are homozygous for both alleles, they die in utero. Mice heterozygous for the Sod2 mutation and homozygous for the LDLR are viable and fertile. The mice may be useful in studies of diabetes, metabolism, hyperglycemia, atherosclerosis, and hypercholesterolemia, and oxidative stress.
006877 B6.Cg-Ldlrtm1Her Tg(H2-K-AKR1B1)1Tj/J
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Independently, mice hemizygous for this "huAR" transgene express human aldose reductase as a model for increased oxidative stress, while LDLR homozygotes are predisposed to atherosclerosis and hypercholesterolemia. The donating investigators report that the H2-Kd promoter functions on this H2-Kb genetic background without any loss of transgene expression. When mutant mice are hemizygous for the transgene and homozygous for the targeted allele, they may be useful in studies of diabetes, metabolism, atherosclerosis, hypercholesterolemia, and oxidative stress.
006906 B6.Cg-Lepob Ldlrtm1Her/J
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Independently, the C57BL/6-Lepob homozygotes (Stock No. 000632) model the increasingly prevalent metabolic disorder seen in humans (hyperglycemia, hyperinsulinemia, and hyperlipidemia), while LDLR-deficient mice (Stock No. 002207) are predisposed to atherosclerosis. When mutant mice are homozygous for both mutant alleles, they exhibit exacerbated hyperlipidemia and extensive atherosclerotic lesions in the aorta. The mice may be useful in studies of diabetes, metabolism, hyperglycemia, atherosclerosis, and hypercholesterolemia.
006137 B6.Cg-Tg(Cdh5-cre)7Mlia/J
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Hemizygotes are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. In the differentiated endothelium transgene expression is observed as early as E7.5 and progresses to almost full penetrance by E14.5. In adult mice, uniform cre expression is observed in the endothelium of developing and quiescent vessels of all organs examined, as well as within a subset of hematopoietic cells. When bred with any mouse containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the flanked genome. These mice may be useful in studies of the cardiovascular system, including angiogenesis, and endothelial and hematopoietic cell lineages.
004633 B6.Cg-Tg(GFAP-APOE*3)37Hol Apoetm1Unc/J
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These transgenic mice express the human apolipoprotein E3 isoform (APOE3) under the direction of the human glial fibrillary acidic protein (GFAP) promoter and do not express endogenous mouse apolipoprotein E (APOE). The transgenic isoform expression pattern follows the endogenous mouse APOE and GFAP expression patterns in the brain. Human APOE3 is immunodetectable in glia and neuropil in developing and adult mutant mice. Cultured astrocytes from transgenic mice secrete APOE3 in lipoproteins that are similar in size to high-density (HDL) plasma lipoproteins. Detergent-soluble APOE3 protein levels in hemizygous mice forebrain tissue and in adult human cortex tissue are similar. Mice that are hemizygous or homozygous for the transgenic insert and homozygous for the targeted allele are viable, normal in size and do not display any gross physical or behavioral abnormalities. This mutant mouse strain represents a model that may be useful in studies examining the function of APOE3 in t .....
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004631 B6.Cg-Tg(GFAP-APOE*4)1Hol Apoetm1Unc/J
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These transgenic mice express the human apolipoprotein E4 isoform (APOE4) under the direction of the human glial fibrillary acidic protein (GFAP) promoter and do not express endogenous mouse apolipoprotein E (APOE). The transgenic isoform expression pattern follows the endogenous mouse APOE and GFAP expression patterns in the brain. Human APOE4 is immunodetectable in glia and neuropil in developing and adult mutant mice. Cultured astrocytes from transgenic mice secrete APOE4 in lipoproteins that are similar in size to high-density (HDL) plasma lipoproteins. Detergent-soluble APOE4 protein levels in hemizygous mice forebrain tissue and in adult human cortex tissue are similar. Mice that are hemizygous or homozygous for the transgenic insert and homozygous for the targeted allele are viable, normal in size and do not display any gross physical or behavioral abnormalities. This mutant mouse strain represents a model that may be useful in studies examining the function of APOE4 in t .....
For more information please see the full phenotype on the strain data sheet
004659 B6.Cg-Tg(TIE2GFP)287Sato/1J
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This strain expresses Green Fluorescent Protein (GFP) under the direction of the endothelial-specific receptor tyrosine kinase (Tek, formerly, Tie2) promoter. Endothelial cells expressing GFP can be visualized via fluorescent microscopy or purified by FACS.

In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available.

005323 B6;129P2 Pemttm1J-tnyw/J
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006470 B6;129S-Hopxtm1Eno/J
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Homozygous mice are viable and fertile on this mixed genetic background. Absence of the targeted protein is confirmed in heart and brain tissues from homozygotes. The lacZ expression pattern is similar to that of the endogenous gene. Homozygous heart tissues show altered serum response factor (SRF)-associated gene expression. Mice homozygous for this null allele segregate into two phenotypic classes characterized by an excess or deficiency of cardiac myocytes. These mutant mice may be useful in studying cardiac growth and development.
003263 B6;129S2-Cdkn1atm1Tyj/J
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Homozygotes are viable and fertile. p21, the product of the Cdkn1a gene, belongs to a family of regulators, known as cyclin-dependent kinase inhibitors, which modulate progression through the cell cycle. Following serum restimulation, expression of p21 is superinducible by cycloheximide in wild-type but not in p53-deficient cells. p53 appears to play a critical role in p21 induction following DNA damage. p21 can be regulated independently of p53 during normal tissue development, following serum stimulation, and during cellular differentiation.
004669 B6;129S2-Itgb3tm1Hyn/J
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Mice that are homozygous for this targeted allele are viable and fertile. No gene product (protein) is detected on the surface of platelets. Significant (50%) embryonic lethality attributed to fetal hemorrhaging and placental defects is observed. Until three weeks of age, additional pup loss may occur due to hemorrhaging in the skin and gastrointestinal tract. Gastrointestinal tract bleeding is commonly observed in adults and is frequently associated with an enlarged spleen. Erythrocyte number, hemoglobin, hematocrits and thrombus formation are all reduced while bleeding time is prolonged. Varying degrees of liver and kidney necrosis are also observed. Although increased numbers of osteoclasts are observed (3.5 fold over that seen in heterozygotes) they appear to be dysfunctional, having a reduced ability to resorb whale dentin in vitro. Mice are osteosclerotic and hypocalcemic. Enhanced tumor angiogenesis and vascular endothelial growth factor-induced blood vessel growth are observed. .....
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003379 B6;129S2-Scarb1tm1Kri/J
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The class B, type I scavenger receptor (Srb1 or Scarb1) is a cell surface HDL receptor that can recognize the apolipoproteins on the surface of the HDL particle. It plays a key role in determining the levels of plasma lipoprotein cholesterol (primarily HDL) and the accumulation of cholesterol stores in the adrenal gland.In this strain plasma cholesterol (primarily HDL) concentrations increase by 31% in heterozygotes and 125% in homozygotes, as compared to wild type controls. Also, cholesterol levels in adrenal tissue in heterozygous and homozygous mutants decrease by 42% and 72% respectively, relative to wild type controls. The plasma concentration of Apoa-I, the major protein in HDL, is unchanged in mutant animals, relative to wild type controls.Homozygous females are infertile; homozygous males are fertile. Please note that the donating investigator reports that the number of homozygotes resulting from a cross between heterozygotes is significantly lower than what the expected Mendel .....
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007204 B6;129S4-2610005L07RikGt(ROSA)73Sor/J
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Mice homozygous for this mutant allele (called BC058969 in the primary publication) are viable and fertile, with greater than 50% embryonic lethality observed in homozygous embryos. Homozygotes occur at a lower than Mendelian ratio (9%) from heterozygote x heterozygote crosses. No gene product is detected in homozygous embryos aged ED9.5-12.5 or in adult gonad. Homozygotes exhibit defects that affect the same cell types and processes as those controlled by the platelet-derived growth factor (PDGF) pathway, including vasculature, kidney, and skeletal defects (sternum and calvarial bones). Notably, 100% incidence of calvarial bones defects is reported. Additionally, homozygotes are reported to have low b-galactosidase activity; in situ hybridization or other sensitive methods may be necessary to detect expression of the lacZ-neo reporter fusion gene. These BC058969-mutant (2610005L07Rik-mutant) mice may be useful in st .....
For more information please see the full phenotype on the strain data sheet
007202 B6;129S4-5830428H23RikGt(ROSA)76Sor/J
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At age E11.5 to E18.5, homozygous embryos exhibit hemorrhages and microaneurisms. Vascular defects persist into adulthood. At 6 weeks of age, mice are anemic (low hemoglobin concentration, red blood cell count, hematocrit). These mice also exhibit polychromasia (abnormally high number of immature blood cells); kidney defects (abnormally high blood urea nitrogen level, kidney size smaller than wildtype, swollen blood filled glomeruli, reduced number of vascular smooth muscle cells in glomeruli); abnormalities in palate bone fusion and abnormal neural crest derived and thoracic skeleton development. No gene product is detected in homozygous embryos aged ED9.5-12.5 or in adult gonad. Homozygotes occur at lower than Mendelian ratio (18%) and 8% die by age 1 week. Surviving homozygotes and heterozygotes are viable and fertile. These 5830428H23Rik (BC055757)-mutant mice may be useful in studying cellular signaling in development and adult mice; specifically receptor tyrosine kinases .....
For more information please see the full phenotype on the strain data sheet
006258 B6;129S4-Apoa2tm1Bres/J
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Mice homozygous for this targeted mutation are viable and fertile. Homozygous mice have no detectable transcripts in liver tissues and the high density lipoprotein (HDL) particle size is reduced. Homozygotes have decreased plasma levels of HDL cholesterol and free fatty acids in both fed and fasted states. In addition, the plasma concentration of fasting glucose and insulin is decreased. These mice may be useful in studies of lipid metabolism, atherosclerosis, heart disease, insulin resistance and diabetes.
006404 B6;129S4-Apoa4tm1Bres/J
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Mice homozygous for this targeted mutation are viable and fertile with no protein detectable in plasma, liver, or intestinal tissues. Homozygotes have decreased plasma levels of cholesterol, free fatty acids, and high density (HDL) and very low density lipoprotein (VLDL). These mice may be useful in studies of lipid metabolism, atherosclerosis, heart disease, appetite regulation, intestinal lipid absorption, or inflammatory bowel disease.
006238 B6;129S4-Thbs2tm1Bst/J
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Mice homozygous for this targeted mutation are viable and fertile. Multiple analyses has confirmed the absence of protein in embryonic and adult tissue of homozygous mice. Homozygotes exhibit skin disorders (abnormal collagen fiber patterns, reduced tensile strength, increased fragility) and skin fibroblasts have attachment defects. Mice also exhibit an increase in total density/cortical thickness of the long bones, abnormally long bleeding times, and a significant increase in blood vessel density. Homozygous mice exhibit accelerated wound healing after biopsy and accelerated/increased tumor formation following chemically-induced skin carcinogenesis. Mutant mice may be useful in studies of collagen fibrillogenesis in skin and tendons, angiogenesis and vascular pathophysiology, wound healing, chemically-induced tumor progression, and as a potential model for Ehlers Danlos syndrome.

In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are fre .....
For more information please see the full phenotype on the strain data sheet

007206 B6;129S4-TiparpGt(ROSA)79Sor/J
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Homozygous embryos E11.5 to E18.5 exhibit hemorrhages and microaneurisms. Vascular defects persist into adulthood. At 6 weeks of age, mice are anemic (low hemoglobin concentration, red blood cell count, hematocrit). These mice also exhibit polychromasia (abnormally high number of immature blood cells); kidney defects (blood urea nitrogen level abnormally high, kidney size smaller than wildtype, swollen blood filled, degraded glomeruli are often observed, increased number of vascular smooth muscle cells partially filling the glomeruli space); and abnormalities in palate bone fusion. Homozygotes occur at lower than Mendelian ratio (22%), and 32% die by age 2 week. Heterozygotes are viable and fertile. No gene product is detected in homozygous embryos aged ED9.5-12.5 or in adult gonad. These Tiparp-mutant mice may be useful in studying kidney development, vascular development, hematopoiesis and cellular signaling during development and in adult mice; specifically receptor tyrosine .....
For more information please see the full phenotype on the strain data sheet
006028 B6;129S6-Epha2tm1Jrui/J
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Mice homozygous for this targeted mutation are viable and fertile with no overt developmental or behavioral abnormalities. The Jackson Laboratory is distributing these mice on their original C57BL/6;129S6 mixed background. The published phenotype of these mutant mice is described below.

In mutant mice of a mixed BALB/c, C57BL/6, and 129S6 background, murine pulmonary microvascular endothelial cells (MPMEC) isolated from homozygotes express no endogenous protein. MPMEC show impaired ephrin-A1-induced vascular assembly and defective migration both in vitro and in vivo. In addition, MPMEC from homozygous mice exhibit decreased angiogenesis and fail to activate Rac1 in response to ephrin-A1 in vivo. Mutant mice crossed to BALB/c for 7 generations are protected from tumor progression, angiogenesis and metastasis following metastatic mammary adenocarcinoma cell transplantation. These mutant mice may be useful in studies of postnatal angiogenesis (endothelial cell migra .....
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005939 B6;129S6-Insig1tm1Mbjg Insig2tm1Mbjg/J
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Mice homozygous for both targeted mutations are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This double mutant has normal expression of Insig1 and no Insig2 gene expression or protein in liver. As the Insig1 mutant locus contains a loxP, frt-flanked exon 1, Cre-mediated deletion of exon 1 (encoding amino acids 1-113) terminates gene function. Double homozygous mutant mice die in utero some time after embryonic day 18.5. These mice may be useful in studies of cholesterol synthesis and feedback suppression, sterol regulatory element-binding protein (SREBP) processing pathways, liver metabolism and storage functions, and may have use in insulin-related topics such as diabetes and endocrine/exocrine function.
005993 B6;129S6-Pcsk9tm1Jdh/J
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Homozygous mice are viable and fertile with no behavioral abnormalities. No expression of the endogenous RNA or protein is observed in liver. Homozygotes have reduced plasma cholesterol levels; apolipoprotein B (apoB)-containing low-density liproprotein (LDL) is nearly undetectable and apolipoprotein E (apoE)-containing high density liproprotein (HDL) levels are reduced 30%. Homozygotes show increased hepatic LDL-receptor (LDLR) protein (but not RNA) expression. Homogygous mice also have accelerated clearance of circulating cholesterol. Lovastatin addition to the diet of homozygous mice results in further increased hepatic LDLR and LDL clearance from the blood. Heterozygous mice have intermediate plasma cholesterol and LDL clearance. This mouse may be useful in studies of lipid homeostasis, cholesterol metabolism, apolipoprotein function, and statin treatment for hypercholesterolemia.
006208 B6;129S6-Pdzk1tm1Dls/J
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Mice homozygous for this targeted mutation are viable and fertile. Liver tissue from homozygous mutant mice lacks endogenous protein expression. Homozygotes, but not heterozygotes, have significantly decreased (~85-95%) hepatic high density lipoprotein (HDL) receptor scavenger receptor B-I (SR-BI) levels. This decrease is further exacerbated following diet supplementation with the PPAR-alpha activator fenofibrate. These mice may be useful in studies of cardiovascular health and atherosclerosis, lipid metabolism, SR-B1 regulation, kidney function, as well as kidney transporter (e.g. urate transporter) regulation and liver organic anion transport.
002641 B6;129S7-Bdkrb2tm1Jfh/J
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Mice homozygous for the Bdkrb2tm1Jfh targeted mutation are viable and fertile and display no major defects. Homozygous mutant tissue from the ileum, uterus, and superior cervical ganglia all failed to respond to pharmacological doses of bradykinin. This finding supports the existance of only one type of B2 receptor. B2 deficient mice also display a greater hypertensive response to chronic high sodium intake compared to controls. These mice may be used to study the role of the B2 receptor in hypertension, inflammation, the cardiovascular system, renal function and reproduction.
006044 B6;129S7-Ephb4tm1And/J
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Mice homozygous for this targeted mutation show growth retardation and lack of blood flow by embryonic day 9.5-10 (E9.5-10), with lethality occurring around this time. Expression of lacZ occurs exclusively in embryonic vascular endothelial cells and is preferentially expressed on veins. Homozygous embryos show defective angiogenic remodeling at the capillary plexus stage in both yolk sac and head. Arrested cardiac morphogenesis and defective myocardial trabecular extensions are also observed. Heterozygous mice are viable, fertile, exhibit no behavioral defects, and have identical lacZ expression patterns. These mutant mice may be useful in studying the cellular and molecular mechanisms underlying vasculogenesis and angiogenesis, the topography of neovascularization, and adult neovascularization, including tumor angiogenesis.

The developmental abnormalities in homozygous mice closely resemble those observed for mutant mice bearing a lacZ-expressing null mutation .....
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002077 B6;129S7-Ldlrtm1Her/J
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Mice homozygous for the Ldlrtm1Her mutation have an elevated serum cholesterol level of 200-400 mg/dl and they have very high levels (>2,000 mg/dl) when fed a high fat diet. Normal serum cholesterol in the mouse is 80-100 mg/dl.
002529 B6;129S7-Vldlrtm1Her/J
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Mice homozygous for the Vldlrtm1Her targeted mutation are viable and fertile. They are smaller and leaner than normal wildtype siblings. The high level of expression in muscle and adipose tissue suggests a role in VLDL triacylglycerol delivery. Plasma levels of cholesterol, triacylglycerol, and lipoproteins were normal when mice were fed normal, high-carbohydrate or high fat diets. However, homozygous mice do show a modest decrease in body weight, body mass index, and adipose tissue mass as determined by the weights of epididymal fat pads. Many homozygous pups in the colony at the Jackson Lab have patchy fur (hair loss) at weaning but look normal at about 6 weeks of age. In a segregation analysis crossing homozygous females with normal "C57BL6/2J" mice, offspring that were homozygous for this Vldlrtm1Her mutation are associated with subretinal neovascularization and were found to have a neovascularization process similar to a type seen in patients wi .....
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006907 B6;CBA-Tg(APOC3)3707Bres/J
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Mice hemizygous for this "human apo CIII" transgene are viable and fertile. This high expressor founder line (3703) exhibits transgene expression primarily in the liver with some intestinal expression as well. Hemizygous mice have severe plasma hypertriglyceridemia and significantly increased plasma cholesterol. However, resistance to insulin-mediated glucose uptake or hyperinsulinemia are not observed. This high expressor human apo CIII transgenic strain may be useful in studying lipid metabolism, very low density lipoproteins (VLDL), hypertriglyceridemia, coronary heart disease, and/or atherosclerosis.
005956 B6;D1Lac-Scd1ab-2J/J
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The overall appearance of mice homozygous for either the Scd1ab-J allele or the Scd1ab-2J allele (Stock No. 002304 or 005956) includes slightly hunched posture, dry, scaly skin, thin fur sometimes detectable by 7 days of age, and small eyes with encrusted eyelids stuck shut. They have hypoplasia of the sebaceous glands and other hair follicle abnormalities that result in scarring alopecia. These mice have a paucity of adipose tissue, thin subcutis, and a distinctive odor. Hepatic cholesterol ester and triglyceride synthesis has been shown to be deficient in Scd1ab-J homozygotes and could not be restored through diet. Early studies of skin lipids in the original asebia mutant (Scd1ab) revealed a deficiency in wax esters, wax diesters, and sterols esterified with very long-chain fatty acids along with an in .....
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000501 B6CBACa Aw-J/A-Aifm1Hq/J
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Harlequin mice exhibit paucity of fur resulting in near baldness in hemizygous males and homozygous females. Heterozygous females have a patchy absence of hair that is not always obvious, since the degree of hair loss is notably less than 50%. Homozygotes and hemizygous males weigh less than heterozygous or wild type controls. Ataxia is noticeable by 5 months and progresses as the mice age. Initially the ataxia manifests itself as a side-to-side, unsteady gait with a lateral tremor visible at rest. A delayed cerebellar cortical atrophy has been characterized in these mutants, with an apoptotic loss of granule cells beginning at 4 months of age and a necrotic loss of Purkinje cells occurring subsequently. The granule cells re-enter the cell cycle, but the Purkinje cells do not, supporting the postulate that inappropriate cell cycle re-entry of terminally differentiated neurons can induce apoptosis. Cell loss is greater in the caudal lobules of the cerebellum and is extensive by 9 to 11 .....
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002044 B6Ei.Cg-Atp7aMo-blo/J
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Female mice heterozygous for the blotchy alleles (Atp7aMo-blo) are viable and fertile. They have irregular patches of light-colored fur. Hemizygous males and homozygous females have reduced viability and many are infertile. Hemizygotes and homozygotes are light all over with no blotching, are usually small, and occasionally have deformed hindlegs.. Most hemizygotes and homozygotes have defective elastin in the aorta and usually die with aortic aneurysm. Hemizygous males have enlarged air spaces in the lung (emphysema), probably because of defective elastin and collagen. Skin collagen and aortic elastin have defective crosslinking at the step at which lysine residues are converted to aldehydes. Hemizygous males have a deficiency of noradrenalin in the brain, probably because a deficiency of copper shown to exist in the brain causes defective activity of the enzyme dopamine-beta-hydroxylase. Copper absorption from the gut and hepatic copper concentration are reduced to .....
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003005 BPH/2J
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The hypertensive BPH/2 mice have elevated systolic blood pressures at five weeks and by 150 days differ from the BPL/1 by 60 mmHg. The BPH/2 strain has a higher heart rate, larger hearts and kidneys, and higher hematocrits than the BPL/1. It also has lower renin, aldosterone and angiotensin I levels compared to the BPL/1 and BPN/3. The original HBP (high blood pressure) and LBP (low blood pressure) selected lines showed a number of biochemical and physiological differences which have not been reexamined in the inbred strains. These include differences in brain catecholamines, calmodulin concentrations, heat sensitivity, alcohol preference, and longevity. The differences in longevity were striking. The hypotensive selected lines lived two to three hundred days longer, on average, than the hypertensive selected line. Biometrical genetic analysis suggested that three to five genes are responsible for the difference in blood pressure between the BPH/2 and BPL/1. A recent genome scan of an .....
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003006 BPL/1J
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The hypertensive BPH/2 mice (Stock No. 003005) have elevated systolic blood pressures at five weeks and by 150 days differ from the BPL/1 by 60 mmHg. The BPH/2 strain has a higher heart rate, larger hearts and kidneys, and higher hematocrits than the BPL/1. It also has lower renin, aldosterone and angiotensin I levels compared to the BPL/1 and BPN/3 (Stock No. 003004). The original HBP (high blood pressures) and LBP (low blood pressure) selected lines showed a number of biochemical and physiological differences which have not been reexamined in the inbred strains. These include differences in brain catecholamines, calmodulin concentrations, heat sensitivity, alcohol preference, and longevity. The differences in longevity were striking. The hypotensive selected lines lived two to three hundred days longer, on average, than the hypertensive selected line. Biometrical genetic analysis suggested that three to five genes are responsible for the difference in blood pressure between the BPH/2 .....
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003004 BPN/3J
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The normotensive BPN/3 inbred strain serves as a control for the high blood pressure (BPH/2, Stock No. 003005) and low blood pressure (BPL/1, Stock No. 003006) inbred strains BPH/2 mice have elevated systolic blood pressures at five weeks and by 150 days differ from the BPL/1 by 60 mmHg. The BPH/2 strain has a higher heart rate, larger hearts and kidneys, and higher hematocrits than the BPL/1. It also has lower renin, aldosterone and angiotensin I levels compared to the BPL/1 and BPN/3. The original HBP (high blood pressure) and LBP (low blood pressure) selected lines showed a number of biochemical and physiological differences which have not been reexamined in the inbred strains. These include differences in brain catecholamines, calmodulin concentrations, heat sensitivity, alcohol preference, and longevity. The differences in longevity were striking. The hypotensive selected lines lived two to three hundred days longer, on average, than the hypertensive selected line. Biometrical ge .....
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004824 BTBR.V(B6)-Lepob/WiscJ
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Mice homozygous for the obese spontaneous mutation, (Lepob commonly referred to as ob or ob/ob) exhibit obesity hyperphagia, a diabetes-like syndrome of hyperglycemia, glucose intolerance, elevated plasma insulin, subfertility, impaired wound healing, and an increase in hormone production from both pituitary and adrenal glands. They are also hypometabolic and hypothermic. The obesity is characterized by an increase in both number and size of adipocytes. Although hyperphagia contributes to the obesity, homozygotes gain excess weight and deposit excess fat even when restricted to a diet sufficient for normal weight maintenance in lean mice. Hyperinsulinemia does not develop until after the increase body weight and is probably the result of it. Homozygotes do have an abnormally low threshold for stimulation of pancreatic islet insulin secretion even in very young preobese animals. As is the case with mice carrying the diabetes mutation (Leprdb .....
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006781 C57BL/6-Tg(Ckm-DGAT2)10Far/J
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Mice hemizygous for this MCK-DGAT2 transgene are viable and fertile. Under direction of the mouse muscle creatine kinase (MCK) promoter, these mice overexpress human acyl CoA:diacylglycerol acyltransferase 2 (DGAT2) in striated skeletal muscles, specifically glycolytic (rather than oxidative) muscle. DGAT2 overexpression leads to increased lipid deposition (triacylglycerol, ceramide, and fatty acyl CoA) in glycolytic muscle. This lipid accumulation leads to impaired insulin signaling (insulin resistance), glucose uptake, and glucose tolerance in this tissue, as well as whole-body glucose intolerance. These MCK-DGAT2 transgenic mice may be useful in studying lipid accumulation in skeletal muscle, insulin and glucose metabolism, obesity, and type 2 diabetes.

Of note, these mice may also be useful in conjunction with Liv-DGAT2-low transgenic mice (Stock No. 007744) which exhibit DGAT2 overexpression directed to hepatic tissue.

006699 C57BL/6J-Pcsk1N222D/J
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Mice homozygous for this ENU-induced "Pc1N222D" mutation are viable and fertile, although the donating investigator reports that homozygous breeders have diminished reproductive performance. Unlike mice homozygous for the traditional knockout allele, Pc1N222D homozygotes are not runted. Homozygous mice exhibit obesity, abnormal proinsulin processing and multiple endocrinological defects. Increased energy intake and a more efficient metabolism contribute to the obesity. Defective proinsulin processing leads to glucose intolerance, but neither insulin resistance nor diabetes develop despite obesity. Obesity is associated with impaired autocatalytic and neuropeptide processing. These mutant mice are a model of human PC1 deficiency, and may be useful in studying obesity, fat metabolism, propeptide processing, and neuroendocrinology.
000667 C57BR/cdJ
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C57BR/cdJ mice develop early-onset hearing loss that is moderate at seven weeks of age, is severe by 20 weeks and progresses with increasing age (Henry 1982; Zheng et al., 1999). The loss is greatest in the higher frequency range; at 7 weeks, Henry reported 50% of the mice showed no 64 kHz auditory brainstem response (ABR), and by 100 days both the 2 kHz and 32 kHz responses were absent. Both labs found this strain to be least vulnerable to loss of the16 kHz response, which persisted through 200 days but was lost before 300 days of age (Henry 1982). C57BR/cdJ did not exhibit aberrant ABR wave patterns, suggesting that the hearing loss results from defects of the peripheral, rather than central auditory system (Zheng et al., 1999). F1 hybrid progeny from matings with the good-hearing strain CAST/Ei exhibited good hearing even at advanced ages, indicating that the allele(s) responsible for hearing loss in C57BR/cdJ are recessive. An allelism test between C57BR/cdJ and NOD.N .....
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000669 C58/J
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This strain was developed by MacDowell in 1921 from litter mates 58 and 52 of Miss Lathrop's stock. A mating of the same male but a different female gave rise to the commonly used C57BL group of strains. C58/J mice exhibit a high incidence of leukemia (>90% by one year of age). C58/J mice also exhibit an intermediate susceptibility to developing atherosclerotic aortic lesions (1670 to 1690 um2 atherosclerotic aortic lesions/aortic cross-section) following 14 weeks on an atherogenic diet (1.25% cholesterol, 0.5% cholic acid and 15% fat).
006070 CBy.129S6(B6)-Epha2tm1Jrui/J
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Mice homozygous for this targeted mutation are viable, fertile, and display no overt developmental or behavioral abnormalities. In mutant mice of a mixed BALB/c, C57BL/6, and 129S6 background, murine pulmonary microvascular endothelial cells (MPMECs) isolated from homozygotes express no endogenous protein. MPMECs from Epha2-deficient mice show impaired ephrin-A1-induced vascular assembly and defective migration both in vitro and in vivo. In addition, MPMECs from homozygous Epha2 mice exhibit decreased angiogenesis and fail to activate Rac1 in response to ephrin-A1 in vivo. Mutant mice on a BALB/c background that were transplanted with metastatic mammary adenocarcinoma cells showed impaired tumor progression, angiogenesis and metastasis to the lung, compared with wildtype littermate controls. These mutant mice may be useful in studies of postnatal angiogenesis (endothelial cell migration, assembly into new tubules, and cytoskeletal regulation), or as a .....
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007683 CByJ.129X1(Cg)-Apobtm1.1Zc/J
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Mice homozygous for this apoB38.9 allele (apoB38.9/38.9) are viable with impaired fertility, bearing a premature stop codon at residue 1767 of the targeted gene. As a result, homozygous plasma shows a truncated apoB38.9 as the sole apoB protein. Plasma from heterozygous (apoB+/38.9) mice have reduced apoB100 and apoB48 compared to wild-type, with apoB38.9 representing 20% of total circulating apoB. This apoB38.9 truncation affects both apoB100 and apoB48 metabolism in mice, and mimics human Familial Hypobetalipoproteinemia (FHBL). Homozygous and, to a lesser extent, heterozygous mice exhibit symptoms of FHBL due to impaired lipoprotein export system/VLDL secretion, including elevated hepatic triglyceride (TG), cholesterol and free fatty acids (FFA), with decreased plasma TG and cholesterol. These BALB/cByJ-apoB38.9 mice are also heterozygous for the BALB/cByJ-derived SCAD deletion (Acadsdel-J). While BALB/cByJ inbred mice have elevated liver TG f .....
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005564 FVB(Cg)-Tg(Ins2-CALM1)26Ove Tg(Cryaa-TAg)1Ove/PneJ
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Transgenic mice are viable, display small eyes with cataracts and are hyperglycemic within 24 hours of age. S1 Nuclease protection assays indicate expression of calmodulin in the pancreas of 40-60 day old transgenic mice. Immunofluorescence analysis of the pancreas indicates increased levels of camodulin in B-cells of the pancreas. Camodulin fluorescing cells were not detected in the pancreatic acinar cells or any other tissue. Digital image scanning indicates the concentration of camodulin in transgenic B-cells is 5-fold higher than in wild type controls. Pancreatic insulin is 28% of control levels by 15 days of age. Insulin mRNA levels were also reduced in the transgenic animals. Transgenic mice experience hypoalbuminemia, elevated blood pressure, impaired cardiomyocytes and late stage diabetic nephropathy. Although transgenic mice are hyperglycemic within 24 hours of age, they are able to survive over a year without insulin treatment.

This stock is useful for studying systemic c .....
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006125 FVB-Tg(H2-D-Il15)3304Clgr/J
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Mice hemizygous for this transgene are viable and fertile. The transgene was designed to optimize the overexpression of secreted, mature interleukin-15. Transgenic IL-15 expression has a similar tissue distribution as the endogenous gene, but at a significantly higher level. IL-15 protein is detectable in the serum from most mutant, but not from wildtype, mice. Mutant mice develop a progressive alopecia by as early as 5-6 weeks of age, with skin lesions appearing over time. While all transgenic mice exhibit early polyclonal/benign expansion of natural killer and memory CD8+ T lymphocytes (T/NK), two distinct phenotypes emerge over time: approximately 70% of the transgenic mice will exhibit polyclonal T/NK progression in multiple tissues, while the remaining 30% are characterized by T/NK clonal expansion in multiple tissues and acute lymphoblastic leukemia (T/NK ALL). Both T/NK phenotypes are fatal within the first year of life. Mice harboring this transgene may be useful in .....
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006206 FVB.129S6-Gt(ROSA)26Sortm1(HIF1A/luc)Kael/J
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Mice heterozygous for this "ODD-luc" knock-in are viable and fertile with no gross phenotypic or behavioral abnormalities. These mice have the C-terminal portion of the hypoxia-inducible factor 1 alpha (HIF1A) oxygen-dependent degradation domain (ODD) fused to the firefly luciferase (luc) gene. This region of the ODD also contains a proline residue (amino acid 564) that, when hydroxylated, will serve as a binding site for von Hippel-Lindau tumor suppressor protein (pVHL). Under normal oxygen concentrations, prolyl hydroxylation by egg-laying-defective nine (EGLN) proteins leads to pVHL-dependent polyubiquitylation and proteasomal degradation (thus, little or no luciferase fluorescence). Under hypoxia, proline hydroxylation is impaired and ubiquitination is attenuated, resulting in stabilization of the fusion protein and high levels of luciferase fluorescence in the hypoxic tissue(s). These "ODD-Luc" bioluminescent reporter mice may be useful in researching transcriptional .....
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003810 STOCK Adrb1tm1Bkk Adrb2tm1Bkk/J
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Mice that are homozygous null for the Adrb1 and Adrb2 genes are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Stimulation of beta adrenergic receptor function in these mice by agonists or exercise reveals significant impairments in chronotropic range, vascular reactivity and metabolic rate. A severely attenuated chronotropic and hypotensive response is observed after administration of the non-selective beta adrenergic receptor agonist isoproterenol. An abnormal response to epinephrine is also seen, with bradycardia and a monophasic hypertensive blood pressure change being observed rather than the tachycardia and biphasic hypertensive/ hypotensive response seen in wildtype mice. When exercised, heart rates in null mice are lower than that of wild type mice. No difference is noted in the resting heart rate.
004585 STOCK Cav1tm1Mls/J
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Mice that are homozygous for the targeted mutation are viable, fertile and do not display any gross physical abnormalities. Mutant mice exhibit exercise intolerance when challenged and are slightly hyperphagic. No gene product (protein) is detected by Western blot analysis in adipose, lung and heart tissues or in cultured mouse embryonic fibroblasts (MEFs). A decrease in the level of co-expressed caveolin-2 protein is immunodetected. At age 4-5 months, mutant mice are often smaller than their wildtype littermates. By one year of age, mutant mice weigh 5 to 7 grams less than wildtype, and are resistant to diet-induced obesity. Progressive adipose pathology results in reduced white adipose tissue with abnormally small adipocytes and enlarged, hyperplastic brown adipose tissue. Homozygotes display lipid metabolism and uptake disruption with elevated serum triglycerides and free fatty acid levels, and reduced leptin levels. Isolated aortic tissue segments have a diminished vasoconstriction .....
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006873 STOCK Cebpbtm1Vpo/J
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Significant numbers of mice homozygous for this C/EBP-beta mutationon this mixed genetic background die perinatally due to hypoglycemia and a failure to mobilize glycogen. Homozygous males that survive to adulthood are fertile, but females are sterile, and display altered mammary duct formation. Macrophages isolated from homozygous mutant mice have impaired bactericidal activity. Surviving homozygotes exhibit fasting hypoglycemia, with reduced plasma insulin, plasma lipids, and free fatty acids (FFAs), and impaired hepatic glucose production. Further, they have a blunted response to glucagon and adrenaline primarily due to altered levels of hepatic cAMP production and reduced protein kinase A activity. Homozygous mice are resistant to obesity and have increased carbon dioxide production from increased metabolism in the brown adipose tissue and muscle. On a high-fat diet, homozygotes are protected from obesity and fatty liver due to reduced hepatic expression of lipogenic genes. Homozyg .....
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006578 STOCK Myoz2tm1Eno/J
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Mice homozygous for this calsarcin-1 mutant allele are viable and fertile. Immunoblot of homozygous cardiac tissue shows no endogenous protein expression. Strong lacZ expression throughout all cardiac chambers mirrors the expression pattern of the endogenous gene, and marked skeletal muscles known to contain a high proportion of type I (slow) fibers. Homozygotes have skeletal muscle abnormalities in type I (slow) fibers and calcineurin activity. Echocardiography of homozygous mice reveals abnormal heart performance. Absence of gene function activates a cardiac hypertrophic fetal gene program (despite the absence of hypertrophy) and enhanced the cardiac growth response to pressure overload. These mutant mice may be useful in studying growth and gene expression of cardiac and skeletal muscle, as well as the pathogenesis of human cardiomyopathies.

In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic bac .....
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006473 STOCK Smyd1tm1Dsr/J
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Mice heterozygous for this targeted mutation are viable and fertile. Mice homozygous for this targeted allele, however, die between embryonic day (E) 9.5 and 10.5 due to cardiomyocyte maturation defects, including an enlarged heart, single left-side ventricular chamber with tremendous extra cellular matrix expansion between the myocardial and endocardial layers, and defective Hand2 expression. No mRNA transcripts from the targeted mutant gene are detected in cardiac tissue from E9.5 homozygotes. These mutant mice may be useful in studying cardiomyocyte differentiation and cardiac morphogenesis.

In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available.

007679 SWR.129X1(B6)-Apobtm1.1Zc/J
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Mice homozygous for this apoB38.9 allele (apoB38.9/38.9) are viable with impaired fertility, bearing a premature stop codon at residue 1767 of the targeted gene. As a result, homozygous plasma shows a truncated apoB38.9 as the sole apoB protein. Plasma from heterozygous (apoB+/38.9) mice have reduced apoB100 and apoB48 compared to wildtype, with apoB38.9 representing 20% of total circulating apoB. This apoB38.9 truncation affects both apoB100 and apoB48 metabolism in mice, and mimics human Familial Hypobetalipoproteinemia (FHBL). Homozygous and, to a lesser extent, heterozygous mice exhibit symptoms of FHBL due to impaired lipoprotein export system/VLDL secretion, including elevated hepatic triglyceride (TG), cholesterol and free fatty acids (FFA), with decreased plasma TG and cholesterol. Because plasma and liver lipid profiles range from mild to severe in populations of heterozygous apoB38.9 mice on a mixed (C57BL/6J;129X1/SvJ) genetic background, apoB+/38. .....
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002387 129-Asgr2tm1Her/J
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Mice homozygous for the Asgr2tm1Her targeted mutation are viable and have no obvious phenotype. There is no detectable ASGR2 expression and a pronounced reduction in ASGR1 expression. Expression of Asgr1 mRNA is not affected. Homozygous mutant mice are unable to clear 125I labeled asialoorosmomucoid. Plasma desialylated glycoprotein levels are not increased. The plasma lipoprotein protein profile level of mice deficient in both LDLR and ASGR2 does not differ from the LDLR deficient strain arguing against a major role of ASGR in lipoprotein metabolism.
004166 129-Itgb5tm1Des/J
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Mice that are homozygous for the Itgb5tm1Des targeted mutation are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. No Itgb5 gene product (mRNA or protein) is detected. Homozygotes display defects in VEGF-mediated vascular permeability. Cultured keratinocytes derived from homozygous mutant animals display impaired adhesion and migration on vitronectin-coated surfaces.
004374 129-Npr1tm1Gar/J
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Mice that are homozygous for the targeted mutation are viable, normal in size and do not display any gross physical or behavioral abnormalities. No gene product (mRNA) was detected. Homozygous mutant mice have elevated systolic, diastolic and mean blood pressure when compared to wildtype. Heterozygous mutant mice display systolic, diastolic and mean blood pressure that are slightly elevated above wildtype levels. Blood pressure in mutant mice remains elevated independent of salt content in diet. Infusion treatment of atrial natriuretic peptide in mutant mice does not result in the increased urine output or sodium excretion response seen in wildtype mice. Plasma volume expansion to release natriuretic/diuretic factors from the heart fails to induce increased urine output, sodium excretion and cyclic GMP excretion in the mutant. The same plasma volume expansion in wildtype mice results in a 12-fold increase in urine output, a 6-fold increase in sodium excretion and a 4-fold increase in c .....
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005213 129-Slc10a2tm1Pda/J
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Mice that are homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Male pups tend to be smaller in size than female pups prior to weaning. No gene product (mRNA or protein) is detected by Northern or Western blot analysis of the distal small intestine. Ileal brush border membrane vesicles isolated from homozygotes do not exhibit sodium ion dependent taurocholate uptake, indicating a loss of sodium bile acid cotransporter activity. Total plasma cholesterol levels are slightly higher than normal. Total bile acid pool size is reduced approximately 80% in homozygous mutants, although intestinal lipid absorption is reduced by only about 10%. Bile acid functional turnover rate (daily fecal bile acid excretion/pool size) is elevated 150 fold in male mutants and 75 fold in female mutants. Fecal bile acid excretion is increased 24 fold in male mutants and 11 fold in female mutants. Bile acid composition is ab .....
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002357 129P3/JEmsJ
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006203 B6.129(FVB)-Ahrtm3.1Bra/J
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These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Hepatic protein expression of the conditional allele (before exon 2 excision) is equivalent to wildtype by Western blot analysis. This strain may be useful in generating tissue-specific mutants of the floxed allele for use in studies including teratogenesis and xenobiotic metabolism (including dioxin and PCB), Per-Arnt-Sim transcription