Oxidative deamination of S-aminopropylcysteine and S-aminoethylhomocysteine
Serao, I.; Costa, M.; Pecci, L.; Coccia, R.; Cavallini, D.
Italian Journal of Biochemistry 40(4): 216-222
1991
ISSN/ISBN: 0021-2938 PMID: 1787055 Document Number: 381425
S-aminopropylcysteine and S-aminoethylhomocysteine are oxidized by snake venom L-amino acid oxidase in the presence of catalase with formation of the respective ketoderivatives. Only the ketoderivative of S-aminopropylcysteine cyclizes to give a seven membered ring (ketimine) absorbing at 296 nm. In the absence of catalase both ketoderivatives are oxidatively decarboxylated.
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