 Enzymes of 2-oxocarboxylic acid metabolism
  Enzymes of 2-oxocarboxylic acid metabolism| MT | OT | RM | Module | Pathway | Synthase 2.3.3 | Hydratase 4.2.1 | Dehydrogenase 1.1.1 | |
| MT | OT | RM001 | M00010 | oxaloacetate => 2-oxoglutarate | K01647 CS, gltA | K01681 ACO, acnA K01682 acnB | K00031 IDH1, icd K00030 IDH3 | |
| OT | RM001 | M00433 | 2-oxoglutarate => 2-oxoadipate (yeast) | K01655 LYS21 | K17450 ACO2 | K01705 LYS4 | K05824 LYS12 | |
| OT | RM001 | M00433 | 2-oxoglutarate => 2-oxoadipate (bacteria) | K01655 LYS21 | K16792 aksD | K16793 aksE | K05824 LYS12 | |
| OT | RM001 | M00608 | 2-oxoglutarate => 2-oxoadipate (archaea) 2-oxoadipate => 2-oxopimelate 2-oxopimelate => 2-oxosuberate | K10977 aksA | K16792 aksD | K16793 aksE | K10978 aksF | |
| OT | RM001 | M00535 | pyruvate => 2-oxobutanoate | K09011 cimA | K01703 leuC | K01704 leuD | K00052 leuB | |
| OT | RM001 | M00432 | 2-oxoisovalerate => 2-oxoisocaproate | K01649 leuA | K01703 leuC | K01704 leuD | K00052 leuB | |
| K01702 LEU1 | ||||||||
| Reaction module | |
| RM001 | 2-Oxocarboxylic acid chain extension by tricarboxylic acid pathway | 
| 2.3.3 RC00067 | 4.2.1 RC00497 | 1.1.1 RC00114 | ||||||
|  2-oxocarboxylic acid (n) | + |  acetyl-CoA | → |  | → |  | → |  2-oxocarboxylic acid (n+1) | 
| OT | Module | Enzyme | EC | E1 | E2 | E3 | Acceptor | |
| OT | M00307 | pyruvate dehydrogenase (acetyl-transferring) | 1.2.4.1/2.3.1.12/ 1.8.1.4 (1.2.1.51) | K00161 pdhA | K00162 pdhB | K00627 pdhC | K00382 lpd | NAD(P)+ | 
| K00163 aceE | ||||||||
| M00011 | 2-oxoglutarate dehydrogenase (succinyl-transferring) | 1.2.4.2/2.3.1.61/ 1.8.1.4 (1.2.1.52) | K00164 sucA | K00658 sucB | NAD(P)+ | |||
| M00036 | 2-oxoisovalerate dehydrogenase (2-methylpropanoyl-transferring) | 1.2.4.4/2.3.1.168/ 1.8.1.4 (1.2.1.25) | K00166 bkdA1 | K00167 bkdA2 | K09699 bkdB | NAD+ | ||
| K11381 bkdA | ||||||||
| OT | Module | Enzyme | EC | alpha | beta | delta | gamma | epsilon | Acceptor | 
| OT | M00307 | pyruvate:ferredoxin oxidoreductase | 1.2.7.1 | K00169 porA | K00170 porB | K00171 porD | K00172 porC | ferredoxin | |
| K03737 por | |||||||||
| M00011 | 2-oxoglutarate:ferredoxin oxidoreductase | 1.2.7.3 | K00174 korA | K00175 korB | K00176 korD | K00177 korC | ferredoxin | ||
| 2-oxoacid:ferredoxin oxidoreductase | 1.2.7.11 | K00174 oforA | K00175 oforB | ferredoxin | |||||
| 2-oxoisovalerate:ferredoxin oxidoreductase | 1.2.7.7 | K00186 vorA | K00187 vorB | K00188 vorD | K00189 vorC | ferredoxin | |||
| OT | indolepyruvate:ferredoxin oxidoreductase | 1.2.7.8 | K00179 iorA | K00180 iorB | ferredoxin | ||||
| K04090 | |||||||||
| OT | phenylglyoxylate:NAD+ oxidoreductase | 1.2.1.58 | K18355 padG | K18356 padI | K18357 padE | K18358 padF | K18359 padH | NAD+ | |
| Reaction class similarity group | |
| RM903 | Oxidative decarboxylation of 2-oxoacid to form its CoA derivative | 
| pyruvate | RC02742 → | acetyl-CoA |