MetaCyc Pathway: superpathway of L-methionine biosynthesis (transsulfuration) in Rhodanobacter denitrificans FW104-10B01

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Reactions and Genes R2A with Nickel (II) chloride 0.3125 mM
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Aspartate transaminase (in reverse):
oxaloacetate + L-glutamate→L-aspartate + 2-oxoglutarate (EC 2.6.1.1)
LRK54_RS00725 +1.2
LRK54_RS00830 +0.1
LRK54_RS01370 -0.3
LRK54_RS11155 +0.2
Aspartate kinase:
L-aspartate + ATP→L-aspartyl-4-phosphate + ADP (EC 2.7.2.4)
LRK54_RS05300 +1.8
LRK54_RS10365 +0.5
LRK54_RS12625 -1.2
Aspartate-semialdehyde dehydrogenase (in reverse):
L-aspartyl-4-phosphate + NADPH + H+→L-aspartate 4-semialdehyde + NADP+ + phosphate (EC 1.2.1.11)
LRK54_RS01715 N.D.
Homoserine dehydrogenase (in reverse):
L-aspartate 4-semialdehyde + NAD(P)H + H+→L-homoserine + NAD(P)+ (EC 1.1.1.3)
LRK54_RS05300 +1.8
LRK54_RS10365 +0.5
Homoserine O-succinyltransferase:
L-homoserine + succinyl-CoA→O-succinyl-L-homoserine + coenzyme A (EC 2.3.1.46)
No genes
Cystathionine gamma-synthase:
O-succinyl-L-homoserine + L-cysteine→L-cystathionine + H+ + succinate (EC 2.5.1.48)
LRK54_RS05305 +0.2
Cysteine-S-conjugate beta-lyase:
L-cystathionine + H2O→L-homocysteine + ammonium + pyruvate (EC 4.4.1.13)
No genes
5-methyltetrahydropteroyltriglutamate--homocysteine S-methyltransferase:
L-homocysteine + 5-methyltetrahydropteroyl tri-L-glutamate→L-methionine + tetrahydropteroyl tri-L-glutamate (EC 2.1.1.14)
LRK54_RS12135 -0.3
Methionine synthase:
L-homocysteine + a 5-methyltetrahydrofolate→L-methionine + a tetrahydrofolate (EC 2.1.1.13)
LRK54_RS02115 -0.0
LRK54_RS02120 +0.1

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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