About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:3814909
Allelic
Composition
Cd19tm1Tft/Cd19tm1Tft
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd19tm1Tft mutation (0 available); any Cd19 mutation (57 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• in the spleen B cell numbers are reduced 55% compared to in wild-type mice and B cell numbers are also reduced in the lymph nodes
• the number of peritoneal IgM+ B220+ B cells is reduced 74% compared to in wild-type mice
• the overall frequency of CD5+ B cells is reduced compared to in wild-type mice
• in the peritoneum
• following inoculation with DNP-KLH, mice exhibit a modest (less than 10%) IgM and IgG response compared to wild type mice
• secondary challenge elicits a less than 30% IgM and IgG response compared to in wild-type mice
• following stimulation with LPS or IgM or IgM and IL4
• levels in unimmunized mice are 48% lower than in wild-type mice
• levels in unimmunized mice are 86% lower than in wild-type mice
• levels in unimmunized mice are 84% lower than in wild-type mice
• levels in unimmunized mice are 72% lower than in wild-type mice
• levels in unimmunized mice are 57% lower than in wild-type mice
• levels in unimmunized mice are 75% lower than in wild-type mice

hematopoietic system
• in the spleen B cell numbers are reduced 55% compared to in wild-type mice and B cell numbers are also reduced in the lymph nodes
• the number of peritoneal IgM+ B220+ B cells is reduced 74% compared to in wild-type mice
• the overall frequency of CD5+ B cells is reduced compared to in wild-type mice
• in the peritoneum
• following inoculation with DNP-KLH, mice exhibit a modest (less than 10%) IgM and IgG response compared to wild type mice
• secondary challenge elicits a less than 30% IgM and IgG response compared to in wild-type mice
• following stimulation with LPS or IgM or IgM and IL4
• levels in unimmunized mice are 48% lower than in wild-type mice
• levels in unimmunized mice are 86% lower than in wild-type mice
• levels in unimmunized mice are 84% lower than in wild-type mice
• levels in unimmunized mice are 72% lower than in wild-type mice
• levels in unimmunized mice are 57% lower than in wild-type mice
• levels in unimmunized mice are 75% lower than in wild-type mice

cellular
• following stimulation with LPS or IgM or IgM and IL4


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