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Phenotypes Associated with This Genotype
Genotype
MGI:2175223
Allelic
Composition
Otcspf-ash/Y
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Otcspf-ash mutation (1 available); any Otc mutation (22 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
• mutants show a 12% and 33% increase in total liver and mitochondrial protein content, respectively, compared to controls
• orotic aciduria
• mitochondrial specific activity of carbamoyl-phosphate synthetase (ammonia) and glutamate dehydrogenase is about 15% lower than in controls
• citrate synthase activity is increased in the liver but specific activity in mitochondria is similar to controls
• activities of beta-hydroxybutyrate dehydrogenase and cytochrome oxidase are 22% higher and 30% lower, respectively, in the liver
• liver extracts from hemizygous males have 5-10% of normal ornithine transcarbamylase activity

renal/urinary system
• orotic aciduria

cellular
• coupled and uncoupled mitochodria synthesize citrulline at unexpectedly high rates in the presence of 10 mM ornithine and the substrates for carbamoyl phosphate synthesis, however these rates are somewhat lower than rates of normal mitochondria; this difference arises from a lower carbamoyl-phosphate synthetase activity
• at external ornithine concentrations of less than 2 mM, a smaller fraction of the carbamoyl phophate synthesized is converted into citrulline than in controls

liver/biliary system
• liver weight per unit body weight is about 20% greater than normal

integument

growth/size/body
• liver weight per unit body weight is about 20% greater than normal

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
ornithine carbamoyltransferase deficiency DOID:9271 OMIM:311250
J:26977


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