gamma-glutamylcysteine synthetase
(redirected from g-glutamylcysteine synthetase)γ-glu·ta·myl·cys·teine syn·the·tase
an enzyme that catalyzes the first step in glutathione biosynthesis, reacting l-glutamate, l-cysteine, and ATP to form γ-glutamylcysteine, ADP, and orthophosphate; inhibited by thiols such as glutathione and cysteamine.
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