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Phenotypes Associated with This Genotype
Genotype
MGI:3832565
Allelic
Composition
Lyntm1Ard/Lyntm1Ard
Genetic
Background
B6.129P2-Lyntm1Ard
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lyntm1Ard mutation (7 available); any Lyn mutation (67 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• there is about a doubling in the number of T cells found in the peritoneum
• myelopoiesis is greatly enhanced in these mice
• there is a significant increase in the number of colonies generated by bone marrow cells or splenocytes in response to in vitro culturing with GM-CSF, M-CSF, or IL-3
• there is about a doubling in the number of T cells found in the peritoneum
• B cells express lower levels of CD21 and higher levels of CD23 on the cell surface compared to controls
• profound reduction in transitional stage-2 B cells
• about a five-fold reduction in follicular B cells
• profound reduction in marginal zone B cells
• spleen cellularity is reduced by more than half due to B cell lymphopenia
• significant expression of MHCII complexes by circulating B cells suggest these B cells are in an activated state
• B cells have enhanced calcium flux upon activation
• auto-antibodies of the IgA, IgG IgM classes develop as the mice age
• mice develop anti-DS DNA IgG antibodies as they age with high levels detectable in all mice by 20 weeks of age
• all mice have immunoglobulin complex deposition in the kidney by 8 weeks of age
• 83% of mice also have C3 complement deposition in the kidney
• severe glomerulonephritis occurs in these mice by one year of age

renal/urinary system
• all mice have immunoglobulin complex deposition in the kidney by 8 weeks of age
• 83% of mice also have C3 complement deposition in the kidney
• severe glomerulonephritis occurs in these mice by one year of age
• immunoglobulin complex deposition in the kidney by 8 weeks of age
• 83% of mice also have C3 complement deposition in the kidney

digestive/alimentary system
• there is about a doubling in the number of T cells found in the peritoneum

hematopoietic system
• myelopoiesis is greatly enhanced in these mice
• there is a significant increase in the number of colonies generated by bone marrow cells or splenocytes in response to in vitro culturing with GM-CSF, M-CSF, or IL-3
• there is about a doubling in the number of T cells found in the peritoneum
• B cells express lower levels of CD21 and higher levels of CD23 on the cell surface compared to controls
• profound reduction in transitional stage-2 B cells
• about a five-fold reduction in follicular B cells
• profound reduction in marginal zone B cells
• spleen cellularity is reduced by more than half due to B cell lymphopenia
• significant expression of MHCII complexes by circulating B cells suggest these B cells are in an activated state
• B cells have enhanced calcium flux upon activation


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