Patent 11142755 was granted and assigned to AJINOMOTO CO., INC. on October, 2021 by the United States Patent and Trademark Office.
A mutant glutathione synthetase (GSHB) suitable for generating γ-Glu-Val-Gly, and a method for producing γ-Glu-Val-Gly using the same are provided. γ-Glu-Val-Gly is produced by using a mutant GSHB having a mutation at such a position as V7, N13, I14, N15, K17, F22, F95, M165, N199, Y200, P202, I274, T285, and P287.