title: Metabolism of 5-S-cyteinyldopa by O-methylation.
abstract: 5-S-cysteinyldopa is metabolized by O-methylation on incubation with a liver extract and S-adenosyl methionine. O-methylated 5-S-cysteinyldopa isolated from melanoma urines by ion exchange and paper chromatography was identified by gas chromatography-mass spectrometry and NMR.
mesh_terms: D000818:Animals; D003548:Cysteinyldopa / Q000378:metabolism*; D004295:Dihydroxyphenylalanine / Q000031:analogs & derivatives*; D006168:Guinea Pigs; D008099:Liver / Q000378:metabolism*; D008110:Liver Extracts; D008745:Methylation; D051381:Rats; D012436:S-Adenosylmethionine
chemical_list: D008110:Liver Extracts; D003548:Cysteinyldopa; D004295:Dihydroxyphenylalanine; D012436:S-Adenosylmethionine