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Phenotypes Associated with This Genotype
Genotype
MGI:5437713
Allelic
Composition
Faslpr/Faslpr
Havcr1tm1Kuch/Havcr1tm1Kuch
Genetic
Background
B6.Cg-Havcr1tm1Kuch Faslpr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Faslpr mutation (39 available); any Fas mutation (83 available)
Havcr1tm1Kuch mutation (0 available); any Havcr1 mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• more severe in mice over 10 months of age compared to mice homozygous for Faslpr alone
• massive accumulation of B cells
• increase in the number of B220+CD3+ T cells in the peripheral lymphoid compartments compared to mice homozygous for Faslpr alone
• massive increase in CD3+B220-CD4-CD8- and CD3+B220+CD4-CD8- T cells
• massive increase in the accumulation of CD3+B220- CD4+ T cells
• increase in the frequency of IFNG+ cells
• massive increase in the accumulation of CD3+B220- CD8+ T cells
• increase in the frequency of IFNG+ cells
• most T cells have an activated/memory like phenotype
• unlike IgG levels, IgM levels are decreased compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone
• more severe in mice over 10 months of age compared to mice homozygous for Faslpr alone
• more severe autoimmune response compared to mice homozygous for Faslpr alone
• serum levels of some autoantibodies to lupus associated autoantigens are increased at 14 weeks of age in double mutant mice but not in mice homozygous for Faslpr alone
• autoantibodies can be detected as early as 10 weeks of age
• compared to mice homozygous for Faslpr alone

hematopoietic system
• more severe in mice over 10 months of age compared to mice homozygous for Faslpr alone
• massive accumulation of B cells
• increase in the number of B220+CD3+ T cells in the peripheral lymphoid compartments compared to mice homozygous for Faslpr alone
• massive increase in CD3+B220-CD4-CD8- and CD3+B220+CD4-CD8- T cells
• massive increase in the accumulation of CD3+B220- CD4+ T cells
• increase in the frequency of IFNG+ cells
• massive increase in the accumulation of CD3+B220- CD8+ T cells
• increase in the frequency of IFNG+ cells
• most T cells have an activated/memory like phenotype
• unlike IgG levels, IgM levels are decreased compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone
• compared to mice homozygous for Faslpr alone

growth/size/body
• more severe in mice over 10 months of age compared to mice homozygous for Faslpr alone


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
01/28/2026
MGI 6.24
The Jackson Laboratory