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Phenotypes of mouse diabetes and rat fatty due to mutations in the OB (leptin) receptor.

Science (New York, N.Y.) | Feb 16, 1996

Mice harboring mutations in the obese (ob) and diabetes (db) genes display similar phenotypes, and it has been proposed that these genes encode the ligand and receptor, respectively, for a physiologic pathway that regulates body weight. The cloning of ob, and the demonstration that it encodes a secreted protein (leptin) that binds specifically to a receptor (OB-R) in the brain, have validated critical aspects of this hypothesis. Here it is shown by genetic mapping and genomic analysis that mouse db, rat fatty (a homolog of db), and the gene encoding the OB-R are the same gene.

Pubmed ID: 8584938 RIS Download

Mesh terms: Animals | Base Sequence | Blotting, Southern | Carrier Proteins | Chromosome Mapping | Cloning, Molecular | DNA Mutational Analysis | Diabetes Mellitus | Genetic Markers | Leptin | Mice | Mice, Inbred C57BL | Mice, Inbred Strains | Molecular Sequence Data | Obesity | Phenotype | Polymerase Chain Reaction | Proteins | Rats | Rats, Inbred Strains | Receptors, Cell Surface | Receptors, Cytokine | Receptors, Leptin

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