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Phenotypes Associated with This Genotype
Genotype
MGI:3760848
Allelic
Composition		 Cd79atm4.1Cgn/Cd79atm4.1Cgn
Ightm1.2Rsky/Igh+
Genetic
Background		 involves: BALB/c * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cd79atm4.1Cgn mutation (1 available); any Cd79a mutation (29 available)
Ightm1.2Rsky mutation (0 available); any Igh mutation (47 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
immune system
abnormal pro-B cell differentiation ( J:125719 )
• B cells do not develop past this stage

hematopoietic system
abnormal pro-B cell differentiation ( J:125719 )
• B cells do not develop past this stage

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
01/13/2026
MGI 6.24 		The Jackson Laboratory