title: Purification and properties of cytochrome P-450 from untreated monkey liver microsomes.
abstract: Untreated monkey liver cytochrome P-450 (monkey P-450) has been purified to a specific content of 14.9 n mole/mg protein. The purified preparation was apparently homogeneous and the minimum molecular weight was estimated to be 50,000 by SDS-PAGE. Absolute spectrum of the oxidized form showed peaks at 565, 535 and 417 nm. The monkey P-450 was active in the mixed function oxidation of benzphetamine, aminopyrine, ethylmorphine, aniline and 7-ethoxycoumarin in the presence of rat liver NADPH-cytochrome P-450 reductase and DLPC. Anti monkey P-450 IgG could not inhibit rat P-450s (PB P-450, MC P-448(1) and MC P-448(2] catalyzed 7-ethoxycoumarin O-deethylation activities.
mesh_terms: D000818:Animals; D003577:Cytochrome P-450 Enzyme System / Q000302:isolation & purification*; D004591:Electrophoresis, Polyacrylamide Gel; D008252:Macaca fascicularis; D008297:Male; D008862:Microsomes, Liver / Q000201:enzymology*; D051381:Rats
chemical_list: D003577:Cytochrome P-450 Enzyme System