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Phenotypes Associated with This Genotype
Genotype
MGI:3710683
Allelic
Composition
Gnai2tm1Lbi/Gnai2tm1Lbi
Genetic
Background
B6.129S7-Gnai2tm1Lbi
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gnai2tm1Lbi mutation (1 available); any Gnai2 mutation (56 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mean survival time is 307 days compared to over 600 for control mice

growth/size/body
• there is a significant drop in body weight as mice age

behavior/neurological
• occurs in these mice as the age

digestive/alimentary system
• occurs in these mice as the age
• rectal prolapse and anal bleeding occurs in some mice as they age

hematopoietic system
• leukocytes transgress postcapillary venules at a much slower rate in LPS exposed tissue
• leukocytes adhere to postcapillary venules without migrating through leading to significant accumulation
• reduced numbers of eosinophils in airway lumen of antigen challenged mice
• significant increase in peripheral blood
• increase in number of neutrophils in the peripheral blood
• 2 fold increase in number of lymphocytes in the peripheral blood
• about 2 fold increase in number of monocytes in peripheral blood
• eosinophil migration out of blood vessels is hindered
• activated T cells show no chemotactic response in vitro to various concentrations of CXCR3 ligands CXCL9, CXCL10, or CXCL11, while wild-type cells show a weak response to CXCL9, and mount vigorous responses to CXCL10 and CXCL11; GTPgammaS membrane incorporation by mutant cells is absent in response to CXCR3 ligands
• CXCL12-evoked chemotactic responses are diminished compared to wild-type controls
• cells show similar response as controls in response to CCL19 or CCL21

immune system
• leukocytes transgress postcapillary venules at a much slower rate in LPS exposed tissue
• leukocytes adhere to postcapillary venules without migrating through leading to significant accumulation
• reduced numbers of eosinophils in airway lumen of antigen challenged mice
• significant increase in peripheral blood
• increase in number of neutrophils in the peripheral blood
• 2 fold increase in number of lymphocytes in the peripheral blood
• about 2 fold increase in number of monocytes in peripheral blood
• eosinophil migration out of blood vessels is hindered
• activated T cells show no chemotactic response in vitro to various concentrations of CXCR3 ligands CXCL9, CXCL10, or CXCL11, while wild-type cells show a weak response to CXCL9, and mount vigorous responses to CXCL10 and CXCL11; GTPgammaS membrane incorporation by mutant cells is absent in response to CXCR3 ligands
• CXCL12-evoked chemotactic responses are diminished compared to wild-type controls
• cells show similar response as controls in response to CCL19 or CCL21

cellular
• leukocytes transgress postcapillary venules at a much slower rate in LPS exposed tissue
• leukocytes adhere to postcapillary venules without migrating through leading to significant accumulation


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
03/18/2025
MGI 6.24
The Jackson Laboratory