About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:6100917
Allelic
Composition
Cmtm7tm2a(EUCOMM)Hmgu/Cmtm7+
Rag1tm1Fwa/Rag1tm1Fwa
Genetic
Background
chimera involves: C57BL/6 * C57BL/6N
Cell Lines HEPD0787_6_G03
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cmtm7tm2a(EUCOMM)Hmgu mutation (0 available); any Cmtm7 mutation (25 available)
Rag1tm1Fwa mutation (0 available); any Rag1 mutation (133 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• greatly reduced frequency of IgM-secreting plasma cells
• B-1a cells expressed significantly lower levels of BCR
• B-1a cell population was dramatically reduced in the peritoneal caivty
• impaired survival of B-1a cells
• B-1a and B-1b cells show reduced proliferation

immune system
• greatly reduced frequency of IgM-secreting plasma cells
• B-1a cells expressed significantly lower levels of BCR
• B-1a cell population was dramatically reduced in the peritoneal caivty
• impaired survival of B-1a cells
• B-1a and B-1b cells show reduced proliferation

cellular
• B-1a and B-1b cells show reduced proliferation


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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
01/06/2026
MGI 6.24
The Jackson Laboratory