6.3.2.6	ATP + 1-(5'-phosphoribosyl)-5-amino-4-carboxyimidazole + L-Asp	one of the enzymes of the series involved in the biosynthesis of the purine nucleotides de novo	
6.3.2.6	ATP + 1-(5'-phosphoribosyl)-5-amino-4-carboxyimidazole + L-Asp	catalyzes the aspartate addition at the alpha-amino group to the growing purine backbone	
6.3.2.6	ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate	-	
6.3.2.6	ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate	phosphoribosylaminoimidazole succinocarboxamide synthetase (PAICS) is an important bifunctional enzyme in de novo purine biosynthesis in vertebrate with both 5-aminoimidazole ribonucleotide carboxylase (AIRc) and 4-(N-succinylcarboxamide)-5-aminoimidazole ribonucleotide synthetase (SAICARs) activities	
6.3.2.6	ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate	PurCE performs the sixth and seventh of ten steps in the purine biosynthesis, pathway overview	
6.3.2.6	ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate	seventh of ten steps in the purine biosynthesis, ligation of the carboxylate group of CAIR to the amino group of aspartate, pathway overview	
6.3.2.6	ATP + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + L-aspartate	seventh of ten steps in the purine biosynthesis, pathway overview