Search Criteria: Research Area is "Developmental Biology Research: Defects in Extracellular Matrix Molecules"
| Stock Number |
Strain Name Strain Description |
Standard Supply |
| 004104 | FVB.Cg-Mmp9tm1Tvu/J | Level 4 |
| Mice that are homozygous null for the Mmp9 gene are viable and fertile. No Mmp9 activity is detected in spleen cell lysates. Long bones (tibia, femur) are 10% shorter in homozygous null mice. Histological examination of 3-week-old mice reveals a dramatically lengthened zone of hypertrophic cartilage (6 to 8 times larger vs. wildtype) due to delayed apoptosis, vascularization, and ossification. Subsequent remodeling resolves the condition, resulting in normal appearing bones by 8 weeks of age. Null mice show altered responses to repair of injury in skin, cornea, central nervous system and bone marrow reconstitution, and altered inflammatory responses. | ||
| 004337 | 129(Cg)-Foxg1tm1(cre)Skm/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Foxg1 locus. Forkhead box G1 is required for telencephalon development and is expressed specifically in the telencephalon and discrete head structures. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs in the telencephalon, anterior optic vesicle (developing lens and retina), otic vesicle, facial and head ectoderm, olfactory epithelium, mid-hindbrain junction and pharyngeal pouches. Mice that are homozygous for the targeted mutation die perinatally. Heterozygous mutant mice are viable, fertile, 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 of telencephalic development. | ||
| 003916 | B6(Cg)-Col2a1sedc/J | Repository- Live |
| Newborn homozygotes are smaller than normal, have a shortened trunk, and often display head bobbing. Decreased body weight persists into adulthood, and the noses, trunks, tails, skulls, and long bones of adults are shortened relative to those of normal siblings. Abnormal epiphyses, with dysplasia of the vertebrae, femora, and tibias are found. Although light microscopy failed to detect any abnormalities in the inner ear, the head bobbing characteristic accompanying this mutation is usually associated with inner ear defects. Auditory brainstem response threshold analysis of 10-15 week old homozygotes does show hearing impairment. Clefts develop between the inner and outer aspects of the inner nuclear layer of the retina (retinoschisis). | ||
| 006084 | B6.129P2(Cg)-Foxg1tm1(cre)Skm/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Foxg1 locus. Forkhead box G1 is required for telencephalon development and is expressed specifically in the telencephalon and discrete head structures. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs in the telencephalon, anterior optic vesicle (developing lens and retina), otic vesicle, facial and head ectoderm, olfactory epithelium, mid-hindbrain junction and pharyngeal pouches. Mice that are homozygous for the targeted mutation die perinatally. Heterozygous mutant mice are viable, fertile, normal in size. On the C57BL/6 background, forebrain volume in heterozygotes is substantially reduced especially in the cerebral cortex (40.7%), striatum (29.7%), and hippocampus (18.6%). In the adult, the thalamus is reduced in volume by 21.6%. This mutant mouse strain represents a model that ma
..... For more information please see the full descriiption on the strain data sheet | ||
| 002128 | B6.129S7-Itgb2tm1Bay/J | Repository- Live |
| Mice homozygous for the Itgb2tm1Bay mutation are viable and fertile. Homozygous mutant mice show an increased neutrophil count, and a decreased inflammatory response to peritonitis. Responses to delayed-type hypersensitivity and rejection of transplanted tissue are impaired. PLEASE NOTE: The Itgb2tm1Bay allele is not a null mutation; it is a hypomorphic mutation which results in the expression of very low levels of Itgb2 protein. This strain serves as a model for the moderate form of human CD18 deficiency. | ||
| 000305 | B6.Cg-Fbn1Tsk +/+ Pldnpa/J | Repository- Live |
| Mice homozygous for the pallid spontaneous mutation Pldnpa and nonagouti (a) have pink eyes and a light, yellow-brown coat. The Pldnpa/Pldnpa mice have a slightly lighter coat than strains that are homozygous for the pink-eyed dilution allele (Oca2p/Oca2p). Viability of homozygous mutant mice is slightly reduced. Some homozygotes have slightly abnormal behavior, with abnormal postural responses and head tilting due to the absence of otoliths in the sacculus and utriculus in many but not all mutant mice. The effect of pallid on behavior and otolith morphology appears to be a result of manganese deficiency. Homozygotes display defective mucopolysaccharide synthesis in the otolith matrix and a slower rate of transport of manganese, L-dopa, and L-tryptophane in the brain. Homozygotes have elevated basal and testosterone-induced levels of the kidney lysosomal enzymes b-glucuronidase, b-galactosi
..... For more information please see the full descriiption on the strain data sheet | ||
| 007084 | B6.FVB(Cg)-Mmp9tm1Tvu/J | Repository- Live |
| Mice that are homozygous null for the Mmp9 gene are viable and fertile. No Mmp9 activity is detected in spleen cell lysates. Long bones (tibia, femur) are 10% shorter in homozygous null mice. Histological examination of three-week-old mice reveals a dramatically lengthened zone of hypertrophic cartilage (six to eight times larger vs. wild-type) due to delayed apoptosis, vascularization, and ossification. Subsequent remodeling resolves the condition, resulting in normal appearing bones by eight weeks of age. Null mice show altered responses to repair of injury in skin, cornea, central nervous system and bone marrow reconstitution, and altered inflammatory responses.
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 de
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| 001815 | B6C3Fe a/a-Col1a2oim/J | Repository- Live |
| 002044 | B6Ei.Cg-Atp7aMo-blo/J | Repository- Live |
| 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
..... For more information please see the full descriiption on the strain data sheet | ||
| 006473 | STOCK Smyd1tm1Dsr/J | Repository- Live |
| 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. | ||
| 002908 | 129-Col4a3tm1Dec/J | Repository-Cryopreserved |
| Mice homozygous for the Col4a3tm1Dec targeted mutation develop glomerulonephritis and die at about 8.5 weeks of age. Survival time of homozygous mutant mice is extended to about 14 weeks of age in mice maintained on a mixed genetic background. | ||
| 008444 | 129S4.129S2(B6)-Fn1tm1Hyn/J | Repository-Cryopreserved |
| Mice homozygous for the Fn1tm1Hyn targeted mutation die during early embryonic development. Blastocyst development and implantation of homozygotes is normal. Gastrulation is initiated and appears normal, including extensive mesodermal movement. From embryonic day eight onwards homozygous mutant embryos deteriorate through the 10th and 11th days of gestation. Homozygous mutant embryos have a shortened anterior-posterior axes, fail to develop a notochord, somites, or central heart (on the 129S4/SvJae genetic background). Heterozygous mice are viable for at least two years and appear healthy and approximately the same size as wild-type littermates. Plasma levels of fibronectin in heterozygotes are 50% lower than normal wild-type siblings. 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. This is the case for the st
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| 008445 | B6.129S-Fn1tm1Hyn/2J | Repository-Cryopreserved |
| These mice carry a targeted mutation in the fibronectin 1 gene identical to that found in Stock No. 002270.
This line, backcrossed more than 13 times to C57BL/6J in the donating investigator's colony, has been used in a search for cardiac development modifier genes demonstrating phenotypic differences on C57BL/6J and 129S4/SvJae genetic backgrounds (Astrof, 2007). In the majority of 129S4 background homozygous targeted mutant embryos, heart progenitors remain at their anterior bilateral positions and fail to fuse at the midline to form a heart tube. However, on the C57BL/6J genetic background, cardiac development progresses further and results in a centrally-positioned looped heart. Linkage analysis led to the identification of a 1-Mbp interval on mouse Chromosome 4 containing 21 genes, including five that are differentially expressed between C57BL/6J and 129S4/SvJae. This strain may be helpful in studies of
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| 002270 | B6.129S-Fn1tm1Hyn/J | Repository-Cryopreserved |
| Mice homozygous for the Fn1tm1Hyn targeted mutation die during early embryonic development. Blastocyst development and implantation of homozygotes is normal. Gastrulation is initiated and appears normal, including extensive mesodermal movement. From embryonic day 8 onwards homozygous mutant embryos deteriorate through the 10th and 11th days of gestation. Homozygous mutant embryos have a shortened anterior-posterior axes, fail to develop a notochord or somites, and have abnormal development of the heart, blood vessels, and yolk sac indicating a general deficiency in mesodermally derived tissues. Heterozygous mice are viable for at least 2 years and appear healthy and approximately the same size as wild-type littermates. Plasma levels of fibronectin in heterozygotes are 50% lower than normal wildtype siblings. | ||
| 002463 | B6.129S-Itga4tm1Hyn/J | Repository-Cryopreserved |
| Mice homozygous for the Itga4tm1Hyn targeted mutation die during embryonic development. Homozygous mutant embryos fail to fuse the allantois with the chorion during placentation. There is a defect in the epicardium and coronary vessels results in in utero cardiac hemorrhage; also known as CD49D, VLA-4. | ||
| 003329 | B6.129S7-Itgb2tm2Bay/J | Repository-Cryopreserved |
| Mice homozygous for the Itgb2tm2Bay targeted mutation are viable and fertile, though not good breeders. This mutation differs from the Itgb2tm1Bay mutation (Stock No. 2128) in that it is a null mutation for the Itgb2 subunit of leukocyte integrins. Mutant mice develop chronic dermatitis with extensive facial and submandibular erosions. They also exhibit elevated neutrophil counts, increased immunoglobulin levels, lymphadenopathy, splenomegaly, and abundant plasma cells in skin, lymph nodes, gut and kidney. A severe defect in T cell proliferation can be found in mutant mice when T cell receptors are stimulated either by staphylococcal enterotoxin A or by major histocompatibility complex alloantigens. The phenotype of the mutant mice resembles the phenotype for the human disorder Leukocyte Adhesion Deficiency Type I (LADI). | ||
| 000535 | B6.Cg-Atp7aMo-blo/J | Repository-Cryopreserved |
| 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 6
..... For more information please see the full descriiption on the strain data sheet | ||
| 001381 | B6.Cg-Atp7aMo-pew2J/J | Repository-Cryopreserved |
| 000053 | B6.Cg-Atp7aMo-to/J | Repository-Cryopreserved |
| 002495 | B6;129S4-Col1a1tm1Jae/J | Repository-Cryopreserved |
| Homozygous mice are viable and develop to young adulthood without obvious differences from wildtype mice. As the mice age they develop fibrosis in the dermis characterized by a thickening and roughening of the skin, which is similar to that seen in human scleroderma. Homozygous females develop postpartum abnormalities of the uterus caused by a failure of collagen resorption. They have slightly reduced litter sizes and significantly fewer litters than normal wildtype mice. A secondary collagenase cleavage site was found in the mutant protein that could be cleaved by rat collagenase but not by human collagenase. | ||
| 003524 | B6;129S6-Lrp8tm1Her/J | Repository-Cryopreserved |
| Mutant mice have a targeted mutation of the apolipoprotein E receptor Lrp8 (also called Apoer2). Homozygotes are viable with no gross morphological abnormalities. Homozygous males have reduced fertility, while females are not affected. Using C-terminal specific antibodies, no endogenous protein is detected in the brains of homozygotes. Homozygous mice have a smaller and less foliated cerebellum with various hippocampus defects in granule cell positioning, cortical neuron migration, granule cell laminar organization, commissural fiber distribution, CA1 microtubule-associated protein 2 (MAP-2) distribution, and long term potentiation (LTP). Mutant mice show contextual fear conditioning deficits. These mice may be useful in studies of brain development, neuronal cytoarchitecture, Reelin signaling pathways, NMDA receptor activity, lipoprotein receptors, synaptic plasticity and learning, schizophrenia, and neurodegenerative disorders such as Alzheimer's disease. | ||
| 000063 | B6C3Fe a/a-sy/J | Repository-Cryopreserved |
| Most mice homozygous for the shaker-with-syndactylism mutation (sy) die within the first month, and none have lived to breed. Homozygous mutant mice may be syndactylous on all four feet; the forefeet may often be normal and possibly one or both hindfeet very occasionally so. The remainder of the skeleton shows many slight anomalies in addition to small size. The shafts of the long bones are considerably thinner than normal, and there are differences in shape of the sacral vertebrae and the scapula. Abnormal behavior appears during the first week. It consists of head-tossing and some circling, and the affected mice are always deaf. Abnormalities of the labyrinth can be seen at E13. | ||
| 002907 | C.129S4(B6)-Col3a1tm1Jae/J | Repository-Cryopreserved |
| Mice homozygous for the Col3a1tm1Jae targeted mutation exhibit a shorter life span with approximately 10% of homozygous mutant mice surviving to adulthood. The major cause of death of is rupture of the major blood vessels. | ||
| 000244 | C3Fe(B6)-Fbn2fp/J | Repository-Cryopreserved |
| Mice homozygous for the recessive fused phalanges mutation (Fbn2fp) have syndactyly of the second, third, and/or the fourth digits of the hindlimbs and sometimes also the forelimbs, and this trait is usually not bilaterally symmetrical (Hummell and Chapman, 1971; Chaudhry et al., 2001). This syndactyly likely results from defective mesenchyme differentiation rather than failed interdigital apoptosis (Arteaga-Solis et al., 2001). Although western blot analysis fails to detect FBN2 in Fbn2fp homozygotes, rotary shadowing electron microscopy identifies abundant, morphologically normal microfibrils in adult skin and lung (Chaudhry et al., 2001). | ||
| 002566 | C57BL/6-Atp7aMo-br/J | Repository-Cryopreserved |
| Heterozygous females carrying the brindled allele (Atp7aMo-br) are very similar to mottled heterozygous females (Atp7aMo/+) in appearance but have normal viability. They have curly vibrissae, but the coat is not noticeably waved. Hemizygous males are almost devoid of pigment except in the eyes and ears. The vibrissae are strongly curled, and the coat is wavy. Males usually die by two weeks of age, but a few have lived and been fertile. They have a behavioral abnormality consisting of a slight tremor, uncoordinated gait, and clasping of the hindfeet when held up by the tail. Histological examination of the brain of brindled males shows widespread neuronal degeneration in the cerebral cortex and thalamic nuclei and scattered degeneration in the cerebellum. Heterozygous females have been shown to have neurochemical abnormalities as well. In contrast to mice bearing other Atp7a alleles, brindled mice have no aortic lesions and no defect in crossli
..... For more information please see the full descriiption on the strain data sheet | ||
| 002197 | C57BL/6-Col1a1Mov13/J | Repository-Cryopreserved |
| The integration of the M-MuLV genome near the 5' end of the Col1a1 gene blocks transcription of the gene from this locus. Mice homozygous for this mutation suffer from arrested development at day 12 and die at about embryonic day 13-14. Heterozygotes in our colony rarely survived to 8 months of age. Many died at less than 3 months of age. | ||
| 000813 | CBA/J-Atp7aMo-pew/J | Repository-Cryopreserved |
| The Atp7 genes encode Cu2+ ATPases. Atp7a is the mouse ortholog of the human ATP7A gene, which is mutated in children with Menke's syndrome. The range of defects in both Menke's syndrome and in mice having mutations of Atp7a--the mottled series of mutants--are due to deficiencies in a number of copper-requiring enzymes, in turn attributed to an intracellular copper transport defect. Thus, it is likely that the Atp7a gene product functions as a copper transport protein. (For brief review and references, see Levinson et al., 1994.) Atp7aMo-pew, the mottled-pewter mutation, has the mildest effect of the known mutations at this locus. The sole phenotype noted in hemizygous males and homozygous females is their pale, silvery gray coat color. The coats of affected mice of both sexes are initially agouti; males become pewter by about 4 weeks and females at 5-6 weeks of age. Heterozygous females have normal, agouti coats throug
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| 008443 | D2.129S2(Cg)-Fn1tm1Hyn/J | Repository-Cryopreserved |
| Mice homozygous for the Fn1tm1Hyn targeted mutation die during early embryonic development. Blastocyst development and implantation of homozygotes is normal. Gastrulation is initiated and appears normal, including extensive mesodermal movement. From embryonic day 8 onwards homozygous mutant embryos deteriorate through the 10th and 11th days of gestation. Homozygous mutant embryos have a shortened anterior-posterior axes, fail to develop a notochord or somites, and have abnormal development of the heart, blood vessels, and yolk sac indicating a general deficiency in mesodermally derived tissues. Heterozygous mice are viable for at least 2 years and appear healthy and approximately the same size as wild-type littermates. Plasma levels of fibronectin in heterozygotes are 50% lower than normal wild-type siblings. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from t
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| 005710 | FVB.129S-Mmp13tm1Werb/J | Repository-Cryopreserved |
| Mice that are homozygous for this loxP-flanked ("floxed") allele are viable and fertile with normal endogenous gene function. Cre-mediated recombination results in replacement of exons 3-5 of targeted gene with a single loxP site. When bred to cre-expressing transgenic strains, these floxed mutant mice may be used to generate whole mouse or tissue-specific targeted mutants that may be useful in examining extracellular matrix remodeling and bone development. Of note: when these floxed mice are bred to mice containing a beta-actin promoter-driven cre transgene the resulting cre-positive, homozygous-null mice show robust accumulation of cartilage matrix caused by a transient expansion of the hypertrophic zone and increased trabecular bone mass that persists for months. | ||
| 000623 | TR/DiEiJ | Repository-Cryopreserved |
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