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Phenotypes Associated with This Genotype
Genotype
MGI:3843023
Allelic
Composition		 Vpreb1atm1Ilm/Vpreb1atm1Ilm
Genetic
Background		 B6.129P2-Vpreb1atm1Ilm
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
decreased pre-B cell number ( J:104211 )
• pre-BII cells reduced about 35%
increased pre-B cell number ( J:104211 )
• pre-BI cell numbers are enriched about 1.6 fold

hematopoietic system
decreased pre-B cell number ( J:104211 )
• pre-BII cells reduced about 35%
increased pre-B cell number ( J:104211 )
• pre-BI cell numbers are enriched about 1.6 fold

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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Send questions and comments to User Support. 		last database update
01/28/2026
MGI 6.24 		The Jackson Laboratory