Adenylosuccinate synthetase PURA_DEIRA MPGIAIVGAQWGDEGKGKIVDFLAPEAEYVVRYQGGANAGHTVNAKGKTFKLNLLPSGVLHEGATSILGDGMVIDPEKFIEERRNLMEGGLNPRLKISDRAHIVLPHHKYVDGRKDFVGTTGKGIGPAYADRARRVGIRFGDLLDEGVLRERIERLLEAKPNSTRDAGWATVEDGLKSLAPIREQLAPFIADTGSELRQAIKDGRKVLFEGAQATLLDLNYGTYPFVTSSHPTVGGILVGTGVNHKALHRVYGVAKAFNTRVGHGPFATEVHDEAGILRLRGDGSQPWDEYGTTTGRPRRVGWLDLELLKYAVDVNGLDGLVINKMDILGGLDEIPVCTGYDEGGQPVFKKMKGWSSTDGVTSRATLPKEAQAYLDLIEDTVQCPVVIFSAGPEREKTYGEVHWG DR_0035 purA Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first commited step in the biosynthesis of AMP from IMP (By similarity). 405 IMP--aspartate ligase