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Phenotypes Associated with This Genotype
Genotype
MGI:2672797
Allelic
Composition
Cd81tm1Tmiy/Cd81tm1Tmiy
Genetic
Background
involves: 129/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd81tm1Tmiy mutation (0 available); any Cd81 mutation (20 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• reduced B cell proliferation after surface IgM crosslinking
• T-cell dependent B-cell activation partially reduced
• enhanced proliferation after stimulation with anti-CD4 Ab or LPS
• enhanced proliferation after stimulaiton with anti-CD3 Ab, concanavalin A (ConA), or in mixed lymphocyte reaction (MLR)
• reduced cell surface expression of CD19
• CD19 not down regulated
• reduction in peritoneal B1 cells
• homozygotes display enhanced formation of multinucleated giant cells after stimulation

immune system
• reduced B cell proliferation after surface IgM crosslinking
• T-cell dependent B-cell activation partially reduced
• enhanced proliferation after stimulation with anti-CD4 Ab or LPS
• enhanced proliferation after stimulaiton with anti-CD3 Ab, concanavalin A (ConA), or in mixed lymphocyte reaction (MLR)
• homozygotes display enhanced formation of multinucleated giant cells after stimulation
• reduced cell surface expression of CD19
• CD19 not down regulated
• reduction in peritoneal B1 cells

cellular
• reduced B cell proliferation after surface IgM crosslinking
• T-cell dependent B-cell activation partially reduced
• enhanced proliferation after stimulation with anti-CD4 Ab or LPS
• enhanced proliferation after stimulaiton with anti-CD3 Ab, concanavalin A (ConA), or in mixed lymphocyte reaction (MLR)


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
12/30/2025
MGI 6.24
The Jackson Laboratory