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Phenotypes Associated with This Genotype
Genotype
MGI:2170514
Allelic
Composition
Myf5tm1Pas/Myf5tm1Pas
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Myf5tm1Pas mutation (1 available); any Myf5 mutation (17 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
muscle
• at birth, mice completely lack extraocular muscles or only have residual myofibers unlike in wild-type mice
• by E11.5, the extraocular muscle anlage fails to pattern and begins to atrophy unlike in wild-type mice
• extraocular muscle anlagen exhibits a 5- to 6-fold increase in apoptotic cells compared to in wild-type mice

embryo
• at E11.5, somatic muscle progenitor cells exhibit a temporary pause in development but do not apoptose
• however, somite fate is rescued thereafter by Myod1 expression

vision/eye
• at birth, mice completely lack extraocular muscles or only have residual myofibers unlike in wild-type mice
• by E11.5, the extraocular muscle anlage fails to pattern and begins to atrophy unlike in wild-type mice
• extraocular muscle anlagen exhibits a 5- to 6-fold increase in apoptotic cells compared to in wild-type mice


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
03/25/2025
MGI 6.24
The Jackson Laboratory