title: [Evaluation of substrates for measuring cystyl-amino peptidase activity in various sera and tissues with respect to L-cystine-di-beta-naphthylamide, L-cystine-bis-p-nitroanilide, L-cysteine-beta-naphthylamide, and S-benzyl-L-cysteine-p-nitroanilide (author's transl)].
mesh_terms: D000577:Amides / Q000378:metabolism; D000626:Aminopeptidases / Q000032:analysis*; D000813:Anilides / Q000378:metabolism; D000818:Animals; D003545:Cysteine / Q000031:analogs & derivatives / Q000378:metabolism; D003553:Cystine / Q000031:analogs & derivatives / Q000378:metabolism; D010122:Cystinyl Aminopeptidase / Q000032:analysis* / Q000097:blood; D005260:Female; D006801:Humans; D007668:Kidney / Q000201:enzymology; D008099:Liver / Q000201:enzymology; D008107:Liver Diseases / Q000201:enzymology; D010920:Placenta / Q000201:enzymology; D011247:Pregnancy; D051381:Rats; D013379:Substrate Specificity
chemical_list: D000577:Amides; D000813:Anilides; C015769:cystine-di-beta-naphthylamide; C026205:cystine-bis-4-nitroanilide; D003553:Cystine; C026206:cysteine-beta-naphthylamide; C004559:S-benzyl-L-cysteine-4'-nitroanilide; D000626:Aminopeptidases; D010122:Cystinyl Aminopeptidase; D003545:Cysteine