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Phenotypes Associated with This Genotype
Genotype
MGI:4939594
Allelic
Composition
Cd19tm1(cre)Cgn/Cd19+
Irf8tm1.1Hm/Irf8tm1.1Hm
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd19tm1(cre)Cgn mutation (12 available); any Cd19 mutation (57 available)
Irf8tm1.1Hm mutation (1 available); any Irf8 mutation (31 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• spleen and lymph node sizes are normal
• mice exhibit normal T-dependent and T-independent antibody responses
• the proportion of AA4-B220+IgMlow CD19+ follicular B cells is decreased compared to in control mice
• the frequency of CD19+B220+ B cells is increased compared to in control mice
• the number of total peritoneal B cells is increased compared to in control mice
• the frequency of B220+AA4+ transitional B cells is increased compared to in control mice
• the absolute number of transitional B cells is increased compared to in control mice
• in the peritoneum
• the absolute number of follicular B cells is increased compared to in control mice
• mice exhibit enlarged marginal zones surrounding white pulp follicles compared with control mice
• the frequency of AA4-B220+IgMhi CD19+ marginal zone B cells is increased compared to in control mice
• the absolute number of marginal zone B cells is increased compared to in control mice

hematopoietic system
• the proportion of AA4-B220+IgMlow CD19+ follicular B cells is decreased compared to in control mice
• the frequency of CD19+B220+ B cells is increased compared to in control mice
• the number of total peritoneal B cells is increased compared to in control mice
• the frequency of B220+AA4+ transitional B cells is increased compared to in control mice
• the absolute number of transitional B cells is increased compared to in control mice
• in the peritoneum
• the absolute number of follicular B cells is increased compared to in control mice
• mice exhibit enlarged marginal zones surrounding white pulp follicles compared with control mice
• the frequency of AA4-B220+IgMhi CD19+ marginal zone B cells is increased compared to in control mice
• the absolute number of marginal zone B cells is increased compared to in control 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
01/06/2026
MGI 6.24
The Jackson Laboratory