title: Novel gene activated in rat insulinomas.
abstract: Insulinomas can be induced in experimental animals by the combined administration of diabetogenic agents with polyadenosine diphosphate (polyADP)-ribose synthetase inhibitors. A complementary DNA (cDNA) library that was constructed from streptozocin-nicotinamide-induced rat insulinomas has been found to contain a novel gene encoding a basic protein of 145 amino acids. The gene was expressed in alloxan-nicotinamide-induced insulinomas as well as in streptozocin-nicotinamide-induced insulinomas but not in normal pancreatic islets or in regenerating islets. This indicates that the activation of the gene designated rig, i.e., rat insulinoma gene, may be a general feature of pancreatic beta-cell transformation.
mesh_terms: D007516:Adenoma, Islet Cell / Q000235:genetics*; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D004247:DNA / Q000378:metabolism; D007340:Insulinoma / Q000235:genetics*; D008297:Male; D009857:Oncogenes; D010190:Pancreatic Neoplasms / Q000235:genetics*; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D004247:DNA