Title : Pyridoxal 5'-phosphate-dependent histidine decarboxylase. Mechanism of inactivation by alpha-fluoromethylhistidine.

Pub. Date : 1990 Apr 25

PMID : 2182624






3 Functional Relationships(s)
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1 Mechanism-based inactivation of pyridoxal phosphate-dependent histidine decarboxylase by (S)-alpha-(fluoromethyl)histidine was studied. alpha-fluoromethylhistidine histidine decarboxylase Homo sapiens
2 A mutant histidine decarboxylase (S322A) in which Ser-322 was changed to Ala was also inactivated by alpha-fluoromethylhistidine demonstrating that Ser-322 is not essential for inactivation even though it is close to the active site and is derivatized by borohydride reduction of the inactivated wild-type enzyme. Serine histidine decarboxylase Homo sapiens
3 A mutant histidine decarboxylase (S322A) in which Ser-322 was changed to Ala was also inactivated by alpha-fluoromethylhistidine demonstrating that Ser-322 is not essential for inactivation even though it is close to the active site and is derivatized by borohydride reduction of the inactivated wild-type enzyme. Borohydrides histidine decarboxylase Homo sapiens