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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Exo1tm2Wed
targeted mutation 2, Winfried Edelmann
MGI:5523452
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Exo1tm2Wed/Exo1tm2Wed involves: 129 * C57BL/6 MGI:5523484
cx2
Exo1tm2Wed/Exo1tm2Wed
Trp53tm1Tyj/Trp53tm1Tyj
involves: 129S2/SvPas * C57BL/6 MGI:5523485


Genotype
MGI:5523484
hm1
Allelic
Composition
Exo1tm2Wed/Exo1tm2Wed
Genetic
Background
involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Exo1tm2Wed mutation (0 available); any Exo1 mutation (46 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Decreased testis weight in Exo1tm2Wed/Exo1tm2Wed males

mortality/aging

reproductive system
N
• female mice exhibit normal fertility
• very few spermatogenic cells progress through meiosis II
• very few spermatogenic cells progress through meiosis II
• abnormal metaphase configurations with abnormal spindle structures

neoplasm
• less so than in Exo1tm3.1Wed homozygotes
• in most mice without an increase in microsatellite instability
• less so than in Exo1tm3.1Wed homozygotes

immune system
• mice treated with LPS or LPS and IL4 fail to exhibit efficient class switch recombination from IgM to IgG3 or IgG1 compared with wild-type mice
• splenic B cells from mice immunized with NP-CGG exhibit a decrease in the frequency of mutations at the A:T base pairs in Polh hotspots and a bias towards transition mutations at G:C base pairs compared with wild-type B cells
• however, the overall frequency of mutation is normal

cellular
• very few spermatogenic cells progress through meiosis II
• very few spermatogenic cells progress through meiosis II
• abnormal metaphase configurations with abnormal spindle structures
• mouse embryonic fibroblasts exhibit impaired double strand break repair through DNA end resection compared with wild-type cells
• increased mutation frequencies and an increase in transversions

homeostasis/metabolism
• mouse embryonic fibroblasts exhibit impaired double strand break repair through DNA end resection compared with wild-type cells
• increased mutation frequencies and an increase in transversions

endocrine/exocrine glands

hematopoietic system
• mice treated with LPS or LPS and IL4 fail to exhibit efficient class switch recombination from IgM to IgG3 or IgG1 compared with wild-type mice
• splenic B cells from mice immunized with NP-CGG exhibit a decrease in the frequency of mutations at the A:T base pairs in Polh hotspots and a bias towards transition mutations at G:C base pairs compared with wild-type B cells
• however, the overall frequency of mutation is normal




Genotype
MGI:5523485
cx2
Allelic
Composition
Exo1tm2Wed/Exo1tm2Wed
Trp53tm1Tyj/Trp53tm1Tyj
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Exo1tm2Wed mutation (0 available); any Exo1 mutation (46 available)
Trp53tm1Tyj mutation (12 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• compared with Trp53tm1Tyj homozygotes

neoplasm
• tumor spectrum is the same as in Trp53tm1Tyj homozygotes

cellular
• less segmental chromosomal instability than in Trp53tm1Tyj homozygotes





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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
12/10/2024
MGI 6.24
The Jackson Laboratory