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Phenotypes Associated with This Genotype
Genotype
MGI:2182295
Allelic
Composition
Lyntm1Sor/Lyntm1Sor
Genetic
Background
involves: 129S4/SvJae
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lyntm1Sor mutation (2 available); any Lyn mutation (67 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• B cell proliferation is more sensitive to anti-IgM than wild-type B cells
• at 14 weeks of age
• mice exhibit a decrease in conventional B cells due to increased higher turnover rates than in wild-type mice
• peripheral B cell numbers are reduced by 50% to 70% of wild-type
• B220loHSAhi B lymphocytes are decreased 2- to 5-fold in lymphoid compartments
• at 14 weeks of age, splenomegaly is often accompanied by enlargments of the lymph nodes with lymphoblasts and plasma cells
• blast cells within the lymph node are activated and have a B1 identity
• mice develop anti-dsDNA antibodies around 16 weeks of age unlike wild-type mice

hematopoietic system
• B cell proliferation is more sensitive to anti-IgM than wild-type B cells
• at 14 weeks of age
• mice exhibit a decrease in conventional B cells due to increased higher turnover rates than in wild-type mice
• peripheral B cell numbers are reduced by 50% to 70% of wild-type
• B220loHSAhi B lymphocytes are decreased 2- to 5-fold in lymphoid compartments

growth/size/body
• at 14 weeks of age

cellular
• B cell proliferation is more sensitive to anti-IgM than wild-type B cells


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
12/30/2025
MGI 6.24
The Jackson Laboratory