| gamma-glutamylcyclotransferase | <enzyme> An enzyme that catalyses the synthesis of pyroglutamate from a gamma-glutamyl-amino acid, also releasing the free amino acid. The enzyme acts on derivatives of glutamate, 2-aminobutyrate, alanine and glycine. The enzyme has been proposed to have a role in a gamma-glutamyl cycle for amino acid transport into cells in the intestines. Chemical name: (5-L-Glutamyl)-L-amino-acid 5-glutamyltransferase (cyclizing) Registry number: EC 2.3.2.4 (12 Dec 1998) |
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