title: Ornithine oxoacid aminotransferase found in AH 130 ascites hepatoma cells.
abstract: We found heterogenous ornithine oxoacid aminotransferase (L-ornithine: 2-oxo-acid aminotransferase, EC 2.6.1.1.3) in rat ascites hepatoma AH 130 cells. Compared with enzymes from normal rat tissues, this heterogenous enzyme showed larger Km values for 2-oxoglutarate, a different elution-profile upon affinity chromatography with 2-oxoglutarate, more anionic mobility upon polyacrylamide gell electrophoresis, and a clearly different salting-out property upon ammonium sulfate fractionation. Similar heterogeneity of this aminotransferase was found in human cancer cells.
mesh_terms: D000818:Animals; D002460:Cell Line; D002846:Chromatography, Affinity; D004591:Electrophoresis, Polyacrylamide Gel; D005590:Fractional Precipitation; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007422:Intestines / Q000201:enzymology; D007656:Ketoglutaric Acids / Q000378:metabolism; D007668:Kidney / Q000201:enzymology; D007700:Kinetics; D008099:Liver / Q000201:enzymology; D008114:Liver Neoplasms, Experimental / Q000201:enzymology*; D009369:Neoplasms / Q000201:enzymology; D009952:Ornithine / Q000378:metabolism; D009953:Ornithine-Oxo-Acid Transaminase / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D000637:Transaminases / Q000378:metabolism*
chemical_list: D007656:Ketoglutaric Acids; D009952:Ornithine; D000637:Transaminases; D009953:Ornithine-Oxo-Acid Transaminase