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Phenotypes Associated with This Genotype
Genotype
MGI:7435429
Allelic
Composition
Krastm4Tyj/Kras+
Tg(Cdh5-cre/ERT2)1Rha/0
Genetic
Background
involves: 129S4/SvJae * FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krastm4Tyj mutation (9 available); any Kras mutation (84 available)
Tg(Cdh5-cre/ERT2)1Rha mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mice administered tamoxifen at P1 show lethality beginning at P12
• lethality is not due to failure to thrive
• however, mice treated with tamoxifen between 2 and 4 months of age show no effect on overall survival up to 8 weeks later and show no differences in viability up to 36 weeks later

cardiovascular system
• mice treated with tamoxifen at P1 show thin and fragile appearing cerebral vessels
• however, vessel density within the brain at P21 is normal
• more than 50% of mice treated with tamoxifen between 2 and 4 months develop brain arteriovenous malformations within 8 weeks of treatment
• however, mice treated with tamoxifen at P1 do not exhibit cortical brain arteriovenous malformations and cerebral vessels do not appear dilated
• mice administered tamoxifen at P1 that survive to P21 show an incompletely penetrant (11 of 32 mice) phenotype of focal intracranial hemorrhage
• however, mice treated with tamoxifen at P1 do not show hemorrhage in the intestines, lung, or liver at P14
• however, mice treated with tamoxifen between 2 and 4 months do not show hemorrhage 8 weeks after treatment

nervous system
• mice treated with tamoxifen at P1 show thin and fragile appearing cerebral vessels
• however, vessel density within the brain at P21 is normal
• mice administered tamoxifen at P1 that survive to P21 show an incompletely penetrant (11 of 32 mice) phenotype of focal intracranial hemorrhage
• however, mice treated with tamoxifen at P1 do not show hemorrhage in the intestines, lung, or liver at P14
• however, mice treated with tamoxifen between 2 and 4 months do not show hemorrhage 8 weeks after treatment

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
arteriovenous malformations of the brain DOID:0060688 OMIM:108010
J:312482


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory