MetaCyc Pathway: superpathway of 2,3-butanediol biosynthesis in Escherichia coli BW25113
| Acetolactate synthase: 2 pyruvate + H+→(S)-2-acetolactate + CO2 (EC 2.2.1.6) |
| b0078 (ilvH) |
| b3670 (ilvN) |
| b3671 (ilvB) |
| b3769 (ilvM) |
| b0077 (ilvI) |
| (R)-acetoin + NADH + H+→(R,S)-2,3-butanediol + NAD+ |
| No genes |
| (S)-2-acetolactate + an oxidized electron carrier + H+→CO2 + diacetyl + a reduced two electron carrier (spontaneous) |
| No genes |
| diacetyl + NADH + H+→(S)-acetoin + NAD+ (EC 1.1.1.304) |
| b2426 (ucpA) |
| (S)-acetoin + NADH + H+→(R,S)-2,3-butanediol + NAD+ |
| No genes |
| (S,S)-butanediol dehydrogenase (in reverse): (S)-acetoin + NADH + H+→(S,S)-2,3-butanediol + NAD+ (EC 1.1.1.76) |
| No genes |
Links:
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