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Phenotypes Associated with This Genotype
Genotype
MGI:4439313
Allelic
Composition
Ightm1Aak/Ightm1Aak
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ightm1Aak mutation (0 available); any Igh mutation (47 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mice exhibit decreased B and pre-B cells and an increase in pro-B cells compared with wild-type mice indicating impaired B cell development
• however, V(D)J recombination is normal
• 3- to 5-fold in the bone marrow
• 4-fold decrease in B220+ cells in the bone marrow
• IgM+ B cells are virtually absent from the bone marrow
• 5-fold in the spleen
• 2.5-fold in the bone marrow

hematopoietic system
• mice exhibit decreased B and pre-B cells and an increase in pro-B cells compared with wild-type mice indicating impaired B cell development
• however, V(D)J recombination is normal
• 3- to 5-fold in the bone marrow
• 4-fold decrease in B220+ cells in the bone marrow
• IgM+ B cells are virtually absent from the bone marrow
• 5-fold in the spleen
• 2.5-fold in the bone marrow


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