Allele Symbol Allele Name Allele ID |
Sfn+ wild type MGI:2439556 |
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Summary |
5 genotypes
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• increased mortality starting at about the time hair loss starts and continuing through weaning and a little after
• mice surviving the post weaning period are fertile and live normal lifespans
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• starting about the same time as hair loss
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• 67% frequency in mice older than 6 months
• begin as small sessile or pedunculated papillomas, then most enlarge, and many develop horns
• no evidence of virus particles
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• 67% frequency in mice older than 6 months
• squamous cell carcinomas in the fleshy base of large cutaneous horns
• no evidence of virus particles
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• first coat lost by 3 weeks then quickly replaced and lost again
(J:6200)
• hair loss begins around eyes and nose
(J:6200)
• normal until around 13 days when hair loss begins
(J:29020)
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• 67% frequency in mice older than 6 months
• begin as small sessile or pedunculated papillomas, then most enlarge, and many develop horns
• no evidence of virus particles
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• eyelids, ears, snout and digit/tail tips
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• eyelids, ears, snout and digit/tail tips
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• severe intraoral adhesions prevent opening of mouth at E17
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• seen at E17
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• affected pups show forepaw and hindpaw syndactyly
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• at E17
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• seen at E17
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• fused esophagus is found at E17
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• at E17, affected pups have smooth skin
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• epidermis is hyperproliferative
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• areas of keratinization are frequently detected within and sometimes on surface of expanded suprabasal layers
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• mutants have thickened epithelium resulting from expanded stratum spinosum; clearly defined stratum granulosum and stratum corneum do not form toward epidermal surface
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• severe intraoral adhesions prevent opening of mouth at E17
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• seen at E17
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• at E17, partial fusion of hindlimbs and tail to body wall is observed
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♀ | phenotype observed in females |
♂ | phenotype observed in males |
N | normal phenotype |
• despite Mendelian numbers during embryonic development, only 1 mouse was obtained postnatally
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• in several areas, pronounced in the eyelids, ears, snout, digit/tail tips, chin and two dorsal stripes
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• breaks in the cornified layer in dorsal stripes
• however, most regions exhibit normal cornified layers
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• in the one recovered mouse
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• in the one recovered mouse
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• in several areas, pronounced in the eyelids, ears, snout, digit/tail tips, chin and two dorsal stripes
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• in the one recovered mouse
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• in the one recovered mouse
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• in the one recovered mouse
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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 03/25/2025 MGI 6.24 |
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