D-alanine gamma-glutamyltransferase () is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme characterised from pea seedlings are L-glutamine and D-alanine, which are combined to form the dipeptide, L-γ-glutamyl-D-alanine, with loss of ammonia.
This enzyme belongs to the family of transferases, specifically the aminoacyltransferases. The systematic name of this enzyme class is L-glutamine:D-alanine gamma-glutamyltransferase.
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