title: Free and bound 5-S-cysteinyldopa and dopa in human malignant melanomas.
abstract: Free dopa and 5-S-cysteinyldopa were extracted from two human melanomas. Subsequent hydrolysis of carefully washed melanoma tissue released dopa and 5-S-cysteinyldopa, indication the presence of these catechol amino acids in proteins. Cysteinyldopa-containing proteins may represent the antigens previously demonstrated in human melanomas.
mesh_terms: D003548:Cysteinyldopa / Q000378:metabolism*; D004295:Dihydroxyphenylalanine / Q000031:analogs & derivatives*; D006801:Humans; D008545:Melanoma / Q000378:metabolism*; D012878:Skin Neoplasms / Q000378:metabolism*
chemical_list: D003548:Cysteinyldopa; D004295:Dihydroxyphenylalanine