6.3.3.1	ATP + 2-(formamido)-N1-(5-phospho-D-ribosyl)acetamidine = ADP + phosphate + 5-amino-1-(5-phospho-D-ribosyl)imidazole	enzyme catalyzes transfer of the oxygen of the formyl group to phosphate	1308	
6.3.3.1	ATP + 2-(formamido)-N1-(5-phospho-D-ribosyl)acetamidine = ADP + phosphate + 5-amino-1-(5-phospho-D-ribosyl)imidazole	mechanism	1310	
6.3.3.1	ATP + 2-(formamido)-N1-(5-phospho-D-ribosyl)acetamidine = ADP + phosphate + 5-amino-1-(5-phospho-D-ribosyl)imidazole	sequential mechanism in which ATP binds first to the enzyme and ADP is released last	1308