Search Criteria: Research Area is "Developmental Biology Research: Eye Defects"
| Stock Number |
Strain Name Strain Description |
Standard Supply |
| 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
..... For more information please see the full descriiption on the strain data sheet | ||
| 004293 | 129-Shhtm2Amc/J | Repository- Live |
| Mice that are homozygous for the Shhtm2Amc targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This conditional mutant contains two loxP sites flanking exon 2 of the targeted allele. Cre-mediated recombination excises exon 2 and some surrounding intronic sequence, generating a null allele. When the conditional mutant is crossed with a ubiquitously-expressing Cre recombinase carrier to remove Shh activity in the early embryo, the resulting phenotype resembles the Shh null mutation. These conditional mutant mice may be mated to strains expressing Cre recombinase to study the effects of temporal and tissue-specific ablation of the targeted allele. This mutant mouse strain represents a model that may be useful in studies of developmental defects resulting from disruption of Shh-dependent pathways.
When bred to a strain expressing Cre recombinase under the control of a tet
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| 001649 | A.BY H2bc H2-T18f/SnJ-Dstncorn1/J | Repository- Live |
| 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
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| 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). | ||
| 001809 | B6-Aw-J.Cg-EdaTa-6J +/+ ArTfm/J | Repository- Live |
| Testicular feminization (ArTfm) is a dominant spontaneous mutation on the X chromosome. Hemizygous male mice are outwardly female in appearance except that the vagina does not open until 3 months of age if at all. Male reproductive development is abnormal leading to very small testes, and the absense of vas deferens, the epididymis, and male accessory glands. Spermatogonia and Sertoli cells are present in the testes, but spermatogenesis does not proceed past meiotic prophase. Leydig cells, which normally produce androgen in males, fail to develop normally. This strain is also segregating for the tabby 6J mutation (EdaTa-6J) that affects both the coat color and hair pattern growth. The tabby mutation is maintained in repulsion with the testicular feminization mutation and is used as a coat color marker to assist in identifying resulting genotypes obtained from matings. | ||
| 006233 | B6.129S1-Casp3tm1Flv/J | Repository- Live |
| 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. | ||
| 006236 | B6.129S6-Casp6tm1Flv/J | Repository- Live |
| Homozygous mice are viable and fertile with no gross morphological or behavioral abnormalities. These mutant mice may be useful in studies of mitochondrial events of apoptosis (especially when paired with other executioner caspase mutant models) and lens development. | ||
| 006576 | B6.FVB-Tg(GNAT2-Dta)98Wwk/J | Repository- Live |
| Mice hemizygous for this "Trc-Tox176" transgene (also called "h-GNAT2pro-DTA") are viable and fertile. Expression of diphtheria toxin (DTA) from the transgene is similar to that of endogenous GNAT2, leading to ablation of both rod and cone photoreceptor development in the ventral retina (the abnormality is a result of abnormal cellular development rather than a consequence of retinal degeneration). The dorsal retina has nearly normal development of rods, but the development of cones is limited to about 10%. These transgenic mice exhibit an absence of cone photoreceptors in the retina, as well as the concomitant absence of rod photoreceptors in the ventral retina. The mice may be useful in studies of photoreceptor development, photoreceptor-related retinal diseases, and to profile photoreceptor genes in adult and in developmental stages. | ||
| 000314 | B6CBACa Aw-J/A-EdaTa/J-XO | Repository- Live |
| XO or monsomy X mice lack a second sex chromosome. The condition is inherited as an X-linked dominant trait with male lethality. XO mice exhibit some degree of growth retardation, high frequency hearing loss, reduced thyroid activity, reduced body temperature and some behavioral abnormalities. Unlike Turner Syndrome in humans, XO females are fertile. The two-step mating system for this strain (described under Mating System) incorporates the X-linked coat color marker tabby so that mice can be identified by a combination of coat color and sex. This strain may be useful for studies of Turner Syndrome or X-linked recessive alleles. | ||
| 000501 | B6CBACa Aw-J/A-Aifm1Hq/J | Repository- Live |
| 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
..... For more information please see the full descriiption on the strain data sheet | ||
| 006926 | C57BL/6J-EgfrVel/J | Repository- Live |
| Mice homozygous for this mutation have an embryonic lethal phenotype, failing to develop past embryonic days 13.5. Heterozygous mice are viable, fertile, do not display any behavioral abnormalities and are born with open eyelids and curly vibrissae. Adult heterozygotes often have small eyes and corneal opacity with excessive secretions at the eyelid edges. MEFs (mouse embryonic fibroblasts) exhibit reduced migratory ability, approximately 53% of wildtype controls. Histological analysis of homozygous E12.5 embryos reveals placental defects. This mutant mouse strain may be useful in studies of development and as a visible dominant marker for the Egfr allelic series. | ||
| 002623 | C57BL/6JSmn-Dstncorn1-2J/J | Repository- Live |
| Histological assessment of corneas from mice homozygous for the Dstn corn1-2J mutation reveals focal epithelial thickening and enlarged surface epithelial cells with degenerating nuclei. These mice lack the neovascularization found in mice homozygous for the Dstn corn1 mutation and have a more mild corneal epithelial phenotype. Preliminary assessment indicates that this variation in phenotype results from the distinct mutations in Dstn, not from differences in genetic background. In both mutants the corneal epithelial cells show increased levels and altered organizational patterns of filamentous actin. In the Dstncorn1 mutants this alteration to filamentous actin has been shown to result in accelerated proliferation of basal corneal epithelial cells. (Smith et al., 1996; Wang et al., 2001; Ikeda et al., 2003.) | ||
| 000516 | C57BLKS-Rpl24Bst/J | Repository- Live |
| Belly spot and tail (Rpl24Bst) is a semidominant, homozygous in utero lethal mutation. Adult heterozygotes are viable and fertile although a reduced birth rate for heterozygotes has been reported. This may reflect incomplete penetrance, or, more likely, prenatal mortality. The Rpl24Bst mutation has variable expressivity and the heterozygous phenotypic traits include shortened and kinked tail, white feet and belly spot, malocclusion, smaller body size, exencephaly, abnormalities of the spine, ocular defects, and polydactyly. Polydactyly is found predominantly in the right rear paw, occasionally in the left front paw and rarely in the left rear or right front paws. Approximately 50-60% of the heterozygotes have a reduction in pupillary light reflex in one or both eyes due to an underlying optic nerve atrophy. Ontological studies showed a delay in the developmental fusion of the optic fissure, a disruption of the retinal layers by embryonic day 1
..... For more information please see the full descriiption on the strain data sheet | ||
| 001489 | CALB/RkJ | Repository- Live |
| 005564 | FVB(Cg)-Tg(Ins2-CALM1)26Ove Tg(Cryaa-TAg)1Ove/PneJ | Repository- Live |
| 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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| 003392 | STOCK Crb1rd8/J | Repository- Live |
| 002323 | 129S4/SvJae-Inhbbtm1Jae/J | Repository-Cryopreserved |
| Homozygous mice are deficient in activin B (betaB:betaB), activin AB (betaA:betaB) and inhibin B (alpha:betaB). Heterozygotes appear normal. Homozygous mutants complete embryonic development and are viable. They are born, however, with open eyes which leads to the development of eye lesions. Homozygous males breed normally but mutant females exhibit a profoundly impaired reproductive ability, characterized by perinatal lethality of their offspring. Mutant females have an increased gestation time and decreased nursing ability that may be the result of impaired milk let-down. There is an upregulation of beta-A activin which may contribute to the phenotype. | ||
| 000277 | ATEB/LeJ | Repository-Cryopreserved |
| Mice homozygous for the atrichosis spontaneous mutation (at) are characterized by sparsely distributed hair, especially on the trunk. The amount of hair varies, but affected mice can be easily recognized at 8 to 10 days old. Both sexes are sterile and have very small gonads with few germ cells. There is a great deficiency of primary spermatogonia in the testes. A quantitative study of maturation of ovarian oocytes showed that the proportion of resident oocytes recruited into the first wave of growth was much higher than in phenotypically normal heterozygous controls (J.J. Eppig, personal communication). This strain is also segregating for the eye blebs spontaneous mutation (Grip1eb). | ||
| 000497 | B6 x (B6xAKR-Frem1heb)F1/J | Repository-Cryopreserved |
| 002016 | B6(Cg)-Aw-J EdaTa-6J Chr YB6-Sxr/EiJ | Repository-Cryopreserved |
| 000552 | B6-Aw-J-EdaTa-6J.Cg-Sxr | Repository-Cryopreserved |
| 001730 | B6-Aw-J-EdaTa-6J.Cg-Sxrb Hya-/J | Repository-Cryopreserved |
| 004158 | B6.129-Maftm1Gsb/J | Repository-Cryopreserved |
| Mice that are homozygous for this targeted allele appear weak, fail to feed and die within a few hours of birth from unspecified causes. Embryos exhibit a slightly foreshortened head and abnormal lens development. No Maf gene transcript is detected. Posterior lens cells from homozygotes fail to elongate. These cells display inappropriately high levels of DNA synthesis and express alpha A crystallin and all of the beta crystallin genes at dramatically reduced levels. Heterozygotes are phenotypically normal. The presence of lacZ in the targeted allele makes it possible to observe Maf expression characteristics. | ||
| 005709 | B6.129-Skitm1Cco/J | Repository-Cryopreserved |
| This mutant was created on a mixed (129 x C57BL/6J) background. Greater than 80% of mice on this mixed background had severe neural tube closure defects (such as exencephaly) while less than 16% exhibited facial clefting. The penetrance of these phenotypes has segregated with further backcross to C57BL/6J. The congenic mutant described here was backcrossed 12-14 times to wildtype C57BL/6J. Mice homozygous for the targeted mutation die before or shortly after birth due to developmental defects. Null mice are distinguishable from wildtype and heterozygous littermates at embryonic day 8.5 (E8.5) with delayed, but complete, cranial neural tube closure (incomplete at the normal E9.5). Ninety percent of null mice alive at E18.5 exhibit facial clefting. Other highly penetrant phenotypes include flattened snout, depressed nasal bridge, excessive orbital separation, elongated subventricular zones, vestigial polydactyly, and malformations of the olfactory bulb, iris, and ventral septum. Heterozy
..... For more information please see the full descriiption on the strain data sheet | ||
| 002612 | B6.129S2-Bmp4tm1Blh/J | Repository-Cryopreserved |
| Mice homozygous for the Bmp4tm1Blh targeted mutation mutation die early in embryogenesis. Fifteen to twenty percent of heterozygous mice show developmental defects including polydactyly, craniofacial defects, and cystic kidneys. Heterozygotes have also been reported to show eye abnormalities. | ||
| 002442 | B6.129S4-Inhbbtm1Jae/J | Repository-Cryopreserved |
| Homozygous mice are deficient in activin B (betaB:betaB), activin AB (betaA:betaB) and inhibin B (alpha:betaB). Heterozygotes appear normal. Homozygous mutants complete embryonic development and are viable. They are born, however, with open eyes which leads to the development of eye lesions. Homozygous males breed normally but mutant females exhibit a profoundly impaired reproductive ability, characterized by perinatal lethality of their offspring. Mutant females have an increased gestation time and decreased nursing ability that may be the result of impaired milk let-down. There is an upregulation of beta-A activin which may contribute to the phenotype. | ||
| 003783 | B6.129S7-Bmp7tm1Kry/J | Repository-Cryopreserved |
| Mice homozygous for the null Bmp7 allele die within 48 hours after birth and appear smaller in size when compared to wildtype litter mates. Most display polydactyly in the hindlimbs and exhibit skeletal abnormalities involving the rib cage and skull. Unilateral or bilateral eye defects are present in a majority of the null animals. This defect occurs variably, ranging from a complete absence of eye structures to eyes of normal size. Autopsies on newborn null pups reveal the presence of dysgenic kidneys with hydroureters. Histological examination indicates that homozygous null kidneys possess less than 3 percent of the wildtype number of glomeruli, suggesting that Bmp7 plays a critical role during nephrogenesis. Heterozygous animals appear to display a wildtype phenotype. | ||
| 003336 | B6.129S7-Cdkn1ctm1Sje/J | Repository-Cryopreserved |
| Mice lacking the Cdkn1c gene have altered cell proliferation and differentiation, leading to abdominal muscle defects; cleft palate; endochrondral bone ossification defects with incomplete differentiation of hypertrophic chondrocytes; renal medullary dysplasia; adrenal cortical hyperplasia and cytomegaly; lens cell hyperproliferation and apoptosis. The targeted gene is imprinted. The phenotype differs depending on whether the targeted allele is transmitted from the dam or the sire; maternal inheritance of the null allele is lethal. This is a model for the human Beckwith-Wiedemann syndrome. | ||
| 004852 | B6;129-Crb1rd8/J | Repository-Cryopreserved |
| View strain phenotype and additional information on the Neuroscience Mutagenesis Facility web page for Crb1rd8 (Crb1nmf144) entry. | ||
| 005043 | B6;129-nmf166/J | Repository-Cryopreserved |
| Mice homozygous for the nmf166 mutation have lens extrusion cataracts and deep anterior chambers at 12 weeks of age. View strain phenotype and additional information on the Neuroscience Mutagenesis Facility web page for nmf166 entry. | ||
| 002537 | B6;129S2-Ccnd1tm1Wbg/J | Repository-Cryopreserved |
| Mice homozygous for the targeted mutation develop to term but show growth retardation that is most pronounced by three weeks of age. The majority of mutant mice die early in life, often within the first month. Survivors continue to show lower than average weight and increased mortality. Mammary gland epithelial duct development is normal in virgin mutant mice. Mutant females that survive to adulthood are fertile, but mammary glands of pregnant mice show a dramatic impairment in the expansion of alveolar lobes and mice are unable to lactate. Steroid hormone levels are normal, and there is no apparent defect in estrogen receptor number, suggesting that cyclin D1 deficiency has an effect on the target tissue directly. Mutant mice demonstrate a neurological abnormality evidenced by limb retraction when lifted by their tails. The most severely affected animals remain in a clasped, flexed position for a few seconds after they have been returned to their cage. Retinal abnormalities include a
..... For more information please see the full descriiption on the strain data sheet | ||
| 000836 | B6By.Cg-Sig/J | Repository-Cryopreserved |
| 000287 | B6CBACa Aw-J/A-Plp1jp EdaTa/J | Repository-Cryopreserved |
| Hemizygous males carrying the X-linked jimpy spontaneous mutation (Plp1jp) appear normal when sitting quietly, but beginning at about 3 weeks of age they show a marked tremor of the hindquarters when attempting movement. After 3 weeks of age convulsions may occur. These males die between 20 and 40 days of age. In males, the CNS is very deficient in myelin, but the PNS is normally myelinated. Heterozygous jimpy females have normal lifespans with no overt phenotype. However, jimpy heterozygous females are reported to have reduced numbers of oligodendrocytes compared to wildtype females. The stock is also carrying the X-linked tabby mutation (EdaTa). | ||
| 000250 | BNT/LeJ | Repository-Cryopreserved |
| In the early 1950s, a wild type female from the Namru strain was crossed with a bald hrba/hrba male and one of the pups produced was a male with a bent tail. Pedigree tests revealed the underlying mutation to be semidominant and carried on the X chromosome. The predominant phenotypic trait of kinked, shortened tails results from mis-formed, smaller, and absent tail vertebrae. Heterozygous females have varied expressivity spanning a broad phenotypic range including mice with no apparent phenotype and mice with multiply kinked and shortened tails. Hemizygous males have the highest expressivity; the tail is shortened in some cases to half the normal length and in the most severe cases the kinks in the tail will cause the tail to bend sharply. In males the tail kinks are more common in the distal than the proximal half of the tail. Heterozygous females are fertile, but hemizygous males and homozyous females have decreased viability and fertility. T
..... For more information please see the full descriiption on the strain data sheet | ||
| 002368 | C.129S4(B6)-Inhbbtm1Jae/J | Repository-Cryopreserved |
| Homozygous mice are deficient in activin B (betaB:betaB), activin AB (betaA:betaB) and inhibin B (alpha:betaB). Heterozygotes appear normal. Homozygous mutants complete embryonic development and are viable. They are born, however, with open eyes which leads to the development of eye lesions. Homozygous males breed normally but mutant females exhibit a profoundly impaired reproductive ability, characterized by perinatal lethality of their offspring. Mutant females have an increased gestation time and decreased nursing ability that may be the result of impaired milk let-down. There is an upregulation of beta-A activin which may contribute to the phenotype. | ||
| 001547 | C3Sn.Cg-Cm/J | Repository-Cryopreserved |
| Mice heterozygous for the coloboma spontaneous mutation (Cm) show abnormal posture, head shaking or bobbing, and circling. Heterozygous mutant mice are extremely hyperactive, locomotor activity being three times that of normal mice. | ||
| 000338 | C57BL/6J Aw-J-EdaTa-6J/J | Repository-Cryopreserved |
| 000569 | C57BL/6J-Aw-J-EdaTa +/+ ArTfm/J | Repository-Cryopreserved |
| Testicular feminization (ArTfm) is a dominant spontaneous mutation on the X chromosome. Hemizygous male mice are outwardly female in appearance except that the vagina does not open until 3 months of age if at all. Male reproductive development is abnormal leading to very small testes, and the absense of vas deferens, the epididymis, and male accessory glands. Spermatogonia and Sertoli cells are present in the testes, but spermatogenesis does not proceed past meiotic prophase. Leydig cells, which normally produce androgen in males, fail to develop normally. This strain is also segregating for the tabby mutation (EdaTa) that affects both the coat color and hair pattern growth. The tabby mutation is maintained in repulsion with the testicular feminization mutation and is used as a coat color marker to assist in identifying resulting genotypes obtained from matings. | ||
| 001490 | C;AK-Gja8Lop10/J | Repository-Cryopreserved |
| The lens opacity 10 mutation in Gja8 is semidominant. Homozygotes are microphthalmic with foamy cataract of the entire lens apparent when the eyes open at 12 days of age and increasing in opaqueness with age. Bladder cells are found adjacent to the anterior and posterior subcapsular regions of the lens before birth, the lens nucleus begins to liquefy by 4 days of age and ruptures posteriorly, then the lens capsule thickens. Gja8Lop10 Heterozygotes are not microphthalmic and the phenotype associated with the mutation varies according to the genetic background. A nuclear haze or snowflake nuclear opacity is found in F1 heterozygotes of some backgrounds while a more severe dense nuclear opacity is evident by 4 weeks of age in F1 heterozygotes of other backgrounds including AKR/J and BALB/cJ. Mice homozygous for the Gja8tm1Paul targeted mutation, a recessive mutation in which the entire coding region is removed, do not display posterior lens r
..... For more information please see the full descriiption on the strain data sheet | ||
| 002935 | FVB.129S2(B6)-Ccnd1tm1Wbg/J | Repository-Cryopreserved |
| Mice homozygous for the targeted mutation develop to term but show growth retardation that is most pronounced by three weeks of age. The majority of mutant mice die early in life, often within the first month. Survivors continue to show lower than average weight and increased mortality. Mammary gland epithelial duct development is normal in virgin mutant mice. Mutant females that survive to adulthood are fertile, but mammary glands of pregnant mice show a dramatic impairment in the expansion of alveolar lobes and mice are unable to lactate. Steroid hormone levels are normal, and there is no apparent defect in estrogen receptor number, suggesting that cyclin D1 deficiency has an effect on the target tissue directly. Mutant mice demonstrate a neurological abnormality evidenced by limb retraction when lifted by their tails. The most severely affected animals remain in a clasped, flexed position for a few seconds after they have been returned to their cage. Retinal abnormalities include a
..... For more information please see the full descriiption on the strain data sheet | ||
| 000265 | MY/HuLeJ | Repository-Cryopreserved |
| 001504 | NOR2/LtDn-Vsx2or-2J/J | Repository-Cryopreserved |
| 003318 | STOCK Shhtm1Amc/J | Repository-Cryopreserved |
| Mice homozygous for the Shhtm1Amc targeted mutation display early defects in the establishment and maintenance of midline structures. These defects result from the critical role the Sonic hedgehog (Shh) gene plays in the patterning patterning of vertebrate embryonic tissues, including the brain and spinal cord, the axial skeleton and the limbs. Defects are also observed in all tissues, confirming the proposed role of SHH proteins as an extracellular signal required for the tissue-organizing properties of several vertebrate patterning centers.
When bred to a strain with loxP sites inserted into the same targeted allele (Stock No. 004293) and a strain expressing Cre recombinase in the skin and dental epithelium (Stock No. 004782), this mutant mouse strain may be useful in studies of hedgehog signalling and cell proliferation in the dental e
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| 001385 | STOCK lop13/J | Repository-Cryopreserved |
| lop13 is a recessive mutation that causes bilateral cataracts that do not affect the cortex of the lens. This presents at 3 to 4 weeks of age as a white area in the center of the lens. The size of the eyes is normal. (Varnum, 1981.) | ||
| 000583 | STOCK T(X;16)16H +/+ EdaTa | Repository-Cryopreserved |
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