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Substance Name: gamma-Glutamylcyclotransferase
RN: 9045-44-7


  • An enzyme that catalyzes 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. EC
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Names and Synonyms

Name of Substance

  • gamma-Glutamylcyclotransferase

MeSH Heading

  • gamma-Glutamylcyclotransferase


  • Cyclotransferase, gamma-Glutamylamine
  • gamma Glutamylamine Cyclotransferase
  • gamma Glutamylcyclotransferase
  • gamma-Glutamylamine Cyclotransferase

Systematic Name

  • (5-L-Glutamyl)-L-amino-acid 5-glutamyltransferase (cyclizing)

Registry Numbers

CAS Registry Number

  • 9045-44-7

System Generated Number

  • 0009045447