Tags: Enzyme.
In enzymology a 5-(carboxyamino)imidazole ribonucleotide synthase (EC 6.3.4.18) is an enzyme that catalyzes the chemical reactionATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole + HCO3− ADP + phosphate + 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazoleThe 3 substrates of this enzyme are ATP 5-amino-1-(5-phospho-D-ribosyl)imidazole (AIR) and HCO3− whereas its 3 products are ADP phosphate and 5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole.This enzyme belongs to the family of ligases specifically those forming generic carbon-nitrogen bonds.