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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Fustm1(DDIT3)Dron
targeted mutation 1, David Ron
MGI:2177655
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Fustm1(DDIT3)Dron/Fustm1(DDIT3)Dron 129S6/SvEvTac-Fustm1(DDIT3)Dron MGI:2662388
hm2
Fustm1(DDIT3)Dron/Fustm1(DDIT3)Dron involves: 129S6/SvEvTac * CD-1 MGI:2177657


Genotype
MGI:2662388
hm1
Allelic
Composition
Fustm1(DDIT3)Dron/Fustm1(DDIT3)Dron
Genetic
Background
129S6/SvEvTac-Fustm1(DDIT3)Dron
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fustm1(DDIT3)Dron mutation (0 available); any Fus mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• none survive to adulthood on a 129S6/SvEv genetic background
• while some mice are alive at weaning, none survive to adulthood on a 129S6/SvEv genetic background
• Background Sensitivity: viability is unimpaired on a genetic background involving approximately equal contributions from the 129S6/SvEv and CD1 backgrounds




Genotype
MGI:2177657
hm2
Allelic
Composition
Fustm1(DDIT3)Dron/Fustm1(DDIT3)Dron
Genetic
Background
involves: 129S6/SvEvTac * CD-1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fustm1(DDIT3)Dron mutation (0 available); any Fus mutation (48 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

endocrine/exocrine glands
• progressive reduction in size resulting in adult testes two-thirds to half the size of those of wild-type
• selective reduction in the volume of seminiferous epithelium

growth/size/body
• both males and females are ~70% the size of wild-type littermates at 3 weeks of age

reproductive system
• asynapsis observed 17.6% of pachytene nuclei
• non-homologous synapsis observed in 3.9% of pachytene nuclei
• increased apoptosis of pachytene spermatocytes
• some progression through meiosis in spite of partial asynapsis
• enlarged round spermatids
• progressive reduction in size resulting in adult testes two-thirds to half the size of those of wild-type
• selective reduction in the volume of seminiferous epithelium
• litters produce by mutant females were approximately half the size of those birthed by wild-type females
• males are infertile; however, serum testosterone levels are normal

homeostasis/metabolism

cellular
• asynapsis observed 17.6% of pachytene nuclei
• non-homologous synapsis observed in 3.9% of pachytene nuclei
• increased apoptosis of pachytene spermatocytes
• some progression through meiosis in spite of partial asynapsis
• enlarged round spermatids





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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