MetaCyc Pathway: superpathway of L-cysteine biosynthesis (mammalian) in Pontibacter actiniarum KMM 6156, DSM 19842

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Reactions and Genes m.b. benzoic 0.4 mg/ml
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Methionine adenosyltransferase:
L-methionine + ATP + H2O→S-adenosyl-L-methionine + diphosphate + phosphate (EC 2.5.1.6)
CA264_19025 N.D.
S-adenosyl-L-homocysteine + a methylated methyl acceptor + H+→S-adenosyl-L-methionine + a demethylated methyl acceptor
No genes
S-adenosyl-L-homocysteine + H2O→L-homocysteine + adenosine (EC 3.13.2.1)
CA264_19185 N.D.
Cystathionine beta-synthase:
L-homocysteine + L-serine→L-cystathionine + H2O (EC 4.2.1.22)
CA264_13755 -1.6
Cystathionine gamma-lyase:
L-cystathionine + H2O→L-cysteine + 2-oxobutanoate + ammonium (EC 4.4.1.1)
CA264_00630 +0.2
CA264_17730 +0.0
CA264_20315 -1.1

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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