Main Reaction: Cysteine + Glutamic acid >> γ-Glutamyl-cysteine

Reference: PubMed ID: 2245250
Authors: Lestas AN, Bellingham AJ
Title: A logical approach to the investigation of red cell enzymopathies.
Published: 1990 Sep

Cysteine + Glutamic acid --> γ-Glutamyl-cysteine