Patent ID: 9677106
Date: 2017-06-13
CPC Classifications: C07K,C12N,C12P,C12Y,Y02P

Claim:
1. A method for producing γ-Glu-Val-Gly, comprising: reacting Val-Gly with a γ-glutamyl group donor in the presence of a γ-glutamyltransferase such that γ-Glu-Val-Gly is generated, wherein the γ-glutamyltransferase comprises a large subunit and a small subunit, the large subunit has an amino acid sequence having no less than 90% sequence identity to the amino acid sequence of the positions 26 to 390 of the amino acid sequence of SEQ ID NO: 2, the small subunit has an amino acid sequence having no less than 90% sequence identity to the amino acid sequence of the positions 391 to 580 of the amino acid sequence of SEQ ID NO: 2, and the tyrosine at the position corresponding to position 444 of SEQ ID NO: 2 is modified by a substitution.