MetaCyc Pathway: superpathway of sulfate assimilation and cysteine biosynthesis in Escherichia coli ECOR38

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Phosphoglycerate dehydrogenase:
3-phospho-D-glycerate + NAD+→3-phosphooxypyruvate + NADH + H+
(EC 1.1.1.95)
HEPCGN_05520
HEPCGN_18760 (serA)
HEPCGN_23610 (ghrA)
Sulfate adenylyltransferase:
sulfate + ATP + H+→adenosine 5'-phosphosulfate + diphosphate
(EC 2.7.7.4)
HEPCGN_19620 (cysD)
HEPCGN_19625 (cysN)
Adenylyl-sulfate kinase:
adenosine 5'-phosphosulfate + ATP→3'-phosphoadenylyl-sulfate + ADP + H+
(EC 2.7.1.25)
HEPCGN_19630 (cysC)
Phosphoserine transaminase (in reverse):
3-phosphooxypyruvate + L-glutamateO-phospho-L-serine + 2-oxoglutarate
(EC 2.6.1.52)
HEPCGN_23030 (serC)
Phosphoadenylyl-sulfate reductase (thioredoxin) (in reverse):
3'-phosphoadenylyl-sulfate + a reduced thioredoxin→sulfite + adenosine 3',5'-bisphosphate + an oxidized thioredoxin + 2 H+
(EC 1.8.4.8)
HEPCGN_19085 (cysH)
Phosphoserine phosphatase:
O-phospho-L-serine + H2O→L-serine + phosphate
(EC 3.1.3.3)
HEPCGN_07265 (phoA)
HEPCGN_09200 (serB)
HEPCGN_11525 (aphA)
Serine O-acetyltransferase:
L-serine + acetyl-CoAO-acetyl-L-serine + coenzyme A
(EC 2.3.1.30)
HEPCGN_14600 (cysE)
Sulfite reductase (NADPH) (in reverse):
sulfite + 3 NADPH + 5 H+→hydrogen sulfide + 3 NADP+ + 3 H2O
(EC 1.8.1.2)
HEPCGN_19090 (cysI)
HEPCGN_19095 (cysJ)
Cysteine synthase:
O-acetyl-L-serine + hydrogen sulfide→L-cysteine + acetate + H+
(EC 2.5.1.47)
HEPCGN_21345 (cysM)
HEPCGN_21380 (cysK)

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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