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Phenotypes Associated with This Genotype
Genotype
MGI:3831544
Allelic
Composition
Brca2tm1Mak/Brca2tm2Mak
Tg(Lck-cre)548Jxm/0
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Brca2tm1Mak mutation (0 available); any Brca2 mutation (131 available)
Brca2tm2Mak mutation (1 available); any Brca2 mutation (131 available)
Tg(Lck-cre)548Jxm mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• T cell development and proliferation are normal
• proliferating T cells exhibit increased spontaneous apoptosis compared to wild-type cells
• however, apoptosis of activated T cells following exposure to ionizing radiation, adriamycin or FasL is normal

neoplasm
N
• mice do not develop tumors

cellular
N
• response to DNA damaging agents is normal
• T cells exhibit increased frequencies of chromatid or chromosomal breaks, tri-radial structures, and chromosomal fragments compared to in wild-type cells
• 14.5% of T cells exhibit aneuploidy unlike wild-type cells
• proliferating T cells exhibit increased spontaneous apoptosis compared to wild-type cells
• however, apoptosis of activated T cells following exposure to ionizing radiation, adriamycin or FasL is normal

hematopoietic system
• proliferating T cells exhibit increased spontaneous apoptosis compared to wild-type cells
• however, apoptosis of activated T cells following exposure to ionizing radiation, adriamycin or FasL is normal


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
01/06/2026
MGI 6.24
The Jackson Laboratory