MetaCyc Pathway: superpathway of (R,R)-butanediol biosynthesis in Rahnella sp. WP5

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Reactions and Genes D-Xylose (C)
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Acetolactate synthase:
2 pyruvate + H+→(S)-2-acetolactate + CO2 (EC 2.2.1.6)
EX31_RS03660 -2.6
EX31_RS03665 -2.3
EX31_RS04250 -0.0
EX31_RS14990 -1.0
EX31_RS14995 -0.5
Acetolactate decarboxylase:
(S)-2-acetolactate + H+→CO2 + (R)-acetoin (EC 4.1.1.5)
EX31_RS04245 -0.0
(S)-2-acetolactate + an oxidized electron carrier + H+→CO2 + diacetyl + a reduced two electron carrier (spontaneous)
No genes
diacetyl + NADH + H+→(R)-acetoin + NAD+ (EC 1.1.1.303)
EX31_RS01815 +0.5
(R,R)-butanediol dehydrogenase (in reverse):
(R)-acetoin + NADH + H+→(R,R)-2,3-butanediol + NAD+ (EC 1.1.1.4)
EX31_RS01815 +0.5

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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