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What does Z-PGCK stand for?

Z-PGCK stands for alpha-carbobenzoxy-L-pyroglutamyl chloromethyl ketone

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Samples in periodicals archive:

Abstract Pyroglutamyl aminopeptidase [pyrrolidone-carboxylate peptidase: EC 3. 4. 11. 8] from Bacillus amyloliquefaciens was inactivated rapidly and irreversibly by N alpha-carbobenzoxy-L-pyroglutamyl chloromethyl ketone (Z-PGCK). The second-order rate constant of the inactivation was 1. 1 x 10(5) M-1. s-1, a value which is comparable to that of the clostripain-TLCK reaction. The D-isomer of this chloromethyl ketone derivative was almost inert toward the enzyme under the same conditions.
Pyroglutamyl aminopeptidase [pyrrolidone-carboxylate peptidase: EC 3. 4. 11. 8] from Bacillus amyloliquefaciens was inactivated rapidly and irreversibly by N alpha-carbobenzoxy-L-pyroglutamyl chloromethyl ketone (Z-PGCK). The second-order rate constant of the inactivation was 1. 1 x 10(5) M-1. s-1, a value which is comparable to that of the clostripain-TLCK reaction. The D-isomer of this chloromethyl ketone derivative was almost inert toward the enzyme under the same conditions.