Tags: Enzyme.
In enzymology a gamma-glutamylhistamine synthase (EC 6.3.2.18) is an enzyme that catalyzes the chemical reactionATP + L-glutamate + histamine products of ATP breakdown + Nalpha-gamma-L-glutamylhistamineThe 3 substrates of this enzyme are ATP L-glutamate and histamine whereas its two products are products of ATP breakdown and Nalpha-gamma-L-glutamylhistamine.This enzyme belongs to the family of ligases specifically those forming carbon-nitrogen bonds as acid-D-amino-acid ligases (peptide synthases).