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Phenotypes Associated with This Genotype
Genotype
MGI:4430085
Allelic
Composition
Efnb2tm2And/Efnb2tm2And
Tg(CAG-cre/Esr1*)1Egwa/0
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6 * DBA/2
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Efnb2tm2And mutation (2 available); any Efnb2 mutation (27 available)
Tg(CAG-cre/Esr1*)1Egwa mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• some pups become frail and subsequently die with tamoxifen treatment on first two days postnatal

growth/size/body
• seen with tamoxifen treatment on first two days postnatal

cardiovascular system
• with tamoxifen treatment, vascular morphology in the dermis is severely affected, with dilatation of the vascular lumen

integument
N
• with tamoxifen treatment, infiltration of leukocytes is comparable to untreated controls and is not cause of hypercornification
• seen at P9 with tamoxifen treatment on first two days postnatal
• seen at P9 seen with tamoxifen treatment on first two days postnatal
• seen with tamoxifen treatment on first two days postnatal, pups have shorter hair follicles
• hypercornification of skin is observed seen at P9 with tamoxifen treatment on first two days postnatal
• with tamoxifen treatment, no difference is detected at P4
• seen at P9 with tamoxifen treatment on first two days postnatal
• observed initially by P5 and peaking between 1 and 2 weeks of age with tamoxifen treatment on first two days postnatal
• enhanced proliferation of epidermal progenitor cells is detected with tamoxifen treatment at P1-2


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
12/30/2025
MGI 6.24
The Jackson Laboratory