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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Mostm1Gvw
targeted mutation 1, George F Vande Woude
MGI:3640947
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Mostm1Gvw/Mostm1Gvw involves: 129S1/Sv MGI:3640957


Genotype
MGI:3640957
hm1
Allelic
Composition
Mostm1Gvw/Mostm1Gvw
Genetic
Background
involves: 129S1/Sv
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Mostm1Gvw mutation (0 available); any Mos mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• 20-30% of mutant oocytes extrude abnormally large polar bodies; half are >30 mm in diameter, while the remaining half undergo mitotic-like cleavage to produce cells of equal size
• in 90% of mutant oocytes, the first polar body persists for more than 11 hrs while in wild-type it degrades by 7 hours
• first polar bodies also elongate and frequently undergo an additional division instead of undergoing rapid degeneration
• the first meiotic division of mutant oocytes frequently resembles mitotic cleavage or produces an abnormally large polar body
• mutant oocytes fail to arrest at metaphase II and instead undergo parthenogenetic activation
• the metaphase spindle does not properly translocate to the cell surface in mutant oocytes
• mutant females exhibit reduced fertility

cellular
• 20-30% of mutant oocytes extrude abnormally large polar bodies; half are >30 mm in diameter, while the remaining half undergo mitotic-like cleavage to produce cells of equal size
• in 90% of mutant oocytes, the first polar body persists for more than 11 hrs while in wild-type it degrades by 7 hours
• first polar bodies also elongate and frequently undergo an additional division instead of undergoing rapid degeneration
• the first meiotic division of mutant oocytes frequently resembles mitotic cleavage or produces an abnormally large polar body
• mutant oocytes fail to arrest at metaphase II and instead undergo parthenogenetic activation
• the metaphase spindle does not properly translocate to the cell surface in mutant oocytes





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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
11/19/2024
MGI 6.24
The Jackson Laboratory