type	Journal Article
authors	Stevens, J.; Jakoby, W. B.
title	Cysteine conjugate beta-lyase
journal	Mol Pharmacol
Activity	4.4.1.13
ui	83244517
year	(1983)
volume	23
number	3
pages	761-5.
keywords	Animal
abstract	Cysteine conjugate beta-lyase from rat liver, an enzyme participating in a shunt from mercapturic acid synthesis, has been purified and found to be active with a number of compounds that bear nonpolar leaving groups on the beta-carbon of an amino acid substrate. Pyridoxal phosphate is considered to be a participant in the reaction. In addition to aromatic thioethers of cysteine, the enzyme is also active with two aliphatic amino acid derivatives, S-1,2-dichlorovinyl-L- cysteine and beta-chloroalanine. Evidence is presented that catalysis results in "suicide" inhibition with a partition ratio of about 600 for each of the substrates.
last changed	2002/11/12 16:17