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Phenotypes Associated with This Genotype
Genotype
MGI:5762939
Allelic
Composition
Gt(ROSA)26Sortm1(EYFP)Cos/Gt(ROSA)26Sor+
Ighg1tm1(cre)Cgn/Ighg1+
Prdm1tm2Masu/Prdm1tm2Masu
Genetic
Background
involves: 129P2/OlaHsd * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(EYFP)Cos mutation (23 available); any Gt(ROSA)26Sor mutation (1095 available)
Ighg1tm1(cre)Cgn mutation (4 available); any Ighg1 mutation (29 available)
Prdm1tm2Masu mutation (1 available); any Prdm1 mutation (69 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• splenomegaly in all terminally ill mice
• plasma cell formation is severely impeded 10 days after primary and secondary immunization
• mice show increased numbers of germinal center B cells at day 10 after primary immunizations
• small, but significant, increase of the fraction of germinal center B cells in the S and G2 phases of the cell cycle
• reduction in total as well as sheep red blood cell-specific IgG1, but not IgM, antibodies 10 days after primary and secondary immunization

immune system
• splenomegaly in all terminally ill mice
• plasma cell formation is severely impeded 10 days after primary and secondary immunization
• mice show increased numbers of germinal center B cells at day 10 after primary immunizations
• small, but significant, increase of the fraction of germinal center B cells in the S and G2 phases of the cell cycle
• reduction in total as well as sheep red blood cell-specific IgG1, but not IgM, antibodies 10 days after primary and secondary immunization
• occasional lymphadenopathy

liver/biliary system
• hepatomegaly in one mouse

mortality/aging
• shortened survival
• shortened survival

neoplasm
• spleens and lymph nodes show presence of large cells with a diffuse growth pattern, resembling diffuse large B cell lymphoma (DLBCL)
• lymphoproliferations are of clonal origin
• 5 of 6 DLBCLs are consistent with activated B cell-DLBCL

growth/size/body
• hepatomegaly in one mouse
• splenomegaly in all terminally ill mice


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
03/18/2025
MGI 6.24
The Jackson Laboratory