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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Itprid2tm1Sawa
targeted mutation 1, Senji Shirasawa
MGI:3833897
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Itprid2tm1Sawa/Itprid2tm1Sawa B6.Cg-Itprid2tm1Sawa MGI:3833899
hm2
Itprid2tm1Sawa/Itprid2tm1Sawa involves: 129X1/SvJ * C57BL/6J MGI:3833898


Genotype
MGI:3833899
hm1
Allelic
Composition
Itprid2tm1Sawa/Itprid2tm1Sawa
Genetic
Background
B6.Cg-Itprid2tm1Sawa
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Itprid2tm1Sawa mutation (0 available); any Itprid2 mutation (51 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Resistance to fatty liver formation in Itprid2tm1Sawa/Itprid2tm1Sawa mice

growth/size/body
• reduced body weight compared to controls throughout life
• marked reduction in weight gain after birth

muscle
• muscle triglyceride levels are decreased compared to controls when fed a high fat diet
• muscle triglyceride levels are similar to controls on a normal diet but

cellular
• enhanced glucose uptake in brown adipose tissue in vivo but not in isolated primary adipocytes from brown adipose tissue

behavior/neurological
• significant increase in food intake normalized to body weight
• slight increase in locomotor activity that is more apparent in the dark phase

adipose tissue
• in mice fed a high fat diet but not in mice fed a normal diet
• marked reduction in cell size in both white and brown adipose tissue
• reduction in the mass of epididymal white adipose tissue on a normal or high fat diet compared to diet matched controls
• enhanced glucose uptake in brown adipose tissue in vivo but not in isolated primary adipocytes from brown adipose tissue

homeostasis/metabolism
N
• despite the increase in metabolic rate, no difference in body temperature compared to controls is detected and no defect in adaptive thermogenesis is seen
• unlike metabolic rate, respiratory quotient in mice fed a high fat diet is similar to diet matched controls
• on a standard or high fat diet
• on a standard or high fat diet
• on a standard diet
• reduction in liver triglyceride levels on a normal or high fat diet compared to diet matched controls
• muscle triglyceride levels are decreased compared to controls when fed a high fat diet
• muscle triglyceride levels are similar to controls on a normal diet but
• enhanced metabolic rate in both dark and light phases
• metabolic rate is also increased when fed a high fat diet compared to diet matched controls

liver/biliary system
• reduction in liver triglyceride levels on a normal or high fat diet compared to diet matched controls
• resistance to high fat diet induce hepatic steatosis

digestive/alimentary system
N
• assays indicate nutrient absorption is not significantly different from controls

integument




Genotype
MGI:3833898
hm2
Allelic
Composition
Itprid2tm1Sawa/Itprid2tm1Sawa
Genetic
Background
involves: 129X1/SvJ * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Itprid2tm1Sawa mutation (0 available); any Itprid2 mutation (51 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• marked reduction in weight gain after birth





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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
11/12/2024
MGI 6.24
The Jackson Laboratory