Anisylazoformylarginine: A superior assay substrate for carboxypeptidase B type enzymes
作者:William L Mock、Daniel J Stanford
DOI:10.1016/s0960-894x(02)00128-2
日期:2002.4
Anisylazoformylarginine (CH3OC6H4-N=N-CO-Arg-OH) is rapidly hydrolyzed at the acyl-arginine linkage by the zinc-enzyme porcine carboxypeptidase B. The catalytic reaction is readily monitored spectrophotometrically by disappearance of the intense absorption (349 nm, epsilon 19,100) of the azo chromophore, which chemically fragments after substrate cleavage. (C) 2002 Elsevier Science Ltd. All rights reserved.