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Phenotypes Associated with This Genotype
Genotype
MGI:2653710
Allelic
Composition
Vpreb1atm1Ilm/Vpreb1atm1Ilm
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vpreb1atm1Ilm mutation (0 available); any Vpreb1a mutation (24 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
N
• allelic exclusion of IgH occurs normally
• good antibody response to T cell dependent antigens
• accumulation of cells at the pre-BI stage, indicating a partial block at the transition from pre-BI to pre-BII cells (into the pre-BCR stage)
• percentage of pre-BI cells is increased and the percentage of pre-BII and immature B cells is slightly decreased

hematopoietic system
• accumulation of cells at the pre-BI stage, indicating a partial block at the transition from pre-BI to pre-BII cells (into the pre-BCR stage)
• percentage of pre-BI cells is increased and the percentage of pre-BII and immature B cells is slightly decreased


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
01/28/2026
MGI 6.24
The Jackson Laboratory