Reaction of 5'-p-fluorosulfonylbenzoyl-1,N6-ethenoadenosine with histidine and cysteine residues in the active site of rabbit muscle pyruvate kinase.

Abstract

The inactivation of rabbit muscle pyruvate kinase by 0.3 mM 5'-p-fluorosulfonylbenzoyl-1,N6-ethenoadenosine at pH 7.8 is biphasic. The first phase proceeds rapidly to yield a partially active enzyme (46% residual activity) followed by a slower rate which leads to total inactivation. The inactivation of the first phase can be reversed by addition of 20 mM… (More)

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