MetaCyc Pathway: adenosine ribonucleotides de novo biosynthesis in Synechococcus elongatus PCC 7942

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Adenylosuccinate synthase:
IMP + L-aspartate + GTP→adenylosuccinate + GDP + 2 H+ + phosphate (EC 6.3.4.4)
Synpcc7942_2409 (purA)
Adenylosuccinate lyase:
adenylosuccinate→AMP + fumarate (EC 4.3.2.2)
Synpcc7942_0315 (purB)
Adenylate kinase:
AMP + ATP→2 ADP (EC 2.7.4.3)
Synpcc7942_2213 (adk)

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Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information