Article
Mutant cholinesterases possessing enhanced capacity for reactivation of their phosphonylated conjugates.
Biochemistry - 23 Mar 2004
Kovarik Zrinka, Radić Zoran, Berman Harvey A, Simeon-Rudolf Vera, Reiner Elsa, Taylor Palmer
Abstract excerpt
Selective mutants of mouse acetylcholinesterase (AChE; EC 3.1.1.7) phosphonylated with chiral S(P)- and R(P)-cycloheptyl, -3,3-dimethylbutyl, and -isopropyl methylphosphonyl thiocholines were subjected to reactivation by the oximes HI-6 and 2-PAM and their reactivation kinetics compared with wild-type AChE and butyrylcholinesterase (EC 3.1.1.8). Mutations in the choline binding site (Y337A, Y337A/F338A) or...
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