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Phenotypes Associated with This Genotype
Genotype
MGI:4889054
Allelic
Composition
Gnao1tm3Lbi/Gnao1tm3Lbi
Genetic
Background
involves: 129S7/SvEvBrd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gnao1tm3Lbi mutation (0 available); any Gnao1 mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• enhanced release of insulin by isolated pancreatic islets when stimulated with glucose
• somatostatin does not suppress insulin release stimulated by glucose
• fasting glucose levels are lower than controls
• peak blood glucose levels are lower in a glucose tolerance test and a faster decline back to baseline occurs
• insulin content of the pancreas is about 69% of control levels
• insulin content of the Islets of Langerhans is about 70% of controls
• much greater blood insulin levels within 20 minutes of glucose administration
• hyperinsulinemia
• enhanced release of insulin by isolated pancreatic islets when stimulated with glucose
• somatostatin does not suppress insulin release stimulated by glucose

endocrine/exocrine glands
• enhanced release of insulin by isolated pancreatic islets when stimulated with glucose
• somatostatin does not suppress insulin release stimulated by glucose


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
04/16/2024
MGI 6.23
The Jackson Laboratory