| EC:1.1.1.4 (R,R)-butanediol dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.5 Acetoin dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.30 3-hydroxybutyrate dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.35 3-hydroxyacyl-CoA dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.36 Acetoacetyl-CoA reductase. | TG | PF | CP | HS |
| EC:1.1.1.61 4-hydroxybutyrate dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.76 (S,S)-butanediol dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.83 D-malate dehydrogenase (decarboxylating). | TG | PF | CP | HS |
| EC:1.1.1.157 3-hydroxybutyryl-CoA dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.1.- | TG | PF | CP | HS |
| EC:1.1.99.2 2-hydroxyglutarate dehydrogenase. | TG | PF | CP | HS |
| EC:1.1.99.8 Alcohol dehydrogenase (acceptor). | TG | PF | CP | HS |
| EC:1.2.1.3 Aldehyde dehydrogenase (NAD+). | TG | PF | CP | HS |
| EC:1.2.1.10 Acetaldehyde dehydrogenase (acetylating). | TG | PF | CP | HS |
| EC:1.2.1.16 Succinate-semialdehyde dehydrogenase (NAD(P)+). | TG | PF | CP | HS |
| EC:1.2.1.24 Succinate-semialdehyde dehydrogenase. | TG | PF | CP | HS |
| EC:1.2.1.57 Butanal dehydrogenase. | TG | PF | CP | HS |
| EC:1.2.4.1 Pyruvate dehydrogenase (acetyl-transferring). | TG | PF | CP | HS |
| EC:1.2.7.1 Pyruvate synthase. | TG | PF | CP | HS |
| EC:1.2.99.3 Aldehyde dehydrogenase (pyrroloquinoline-quinone). | TG | PF | CP | HS |
| EC:1.3.1.44 Trans-2-enoyl-CoA reductase (NAD+). | TG | PF | CP | HS |
| EC:1.3.99.1 Succinate dehydrogenase. | TG | PF | CP | HS |
| EC:1.3.99.2 Butyryl-CoA dehydrogenase. | TG | PF | CP | HS |
| EC:2.2.1.6 Acetolactate synthase. | TG | PF | CP | HS |
| EC:2.3.1.9 Acetyl-CoA C-acetyltransferase. | TG | PF | CP | HS |
| EC:2.3.1.19 Phosphate butyryltransferase. | TG | PF | CP | HS |
| EC:2.3.1.54 Formate C-acetyltransferase. | TG | PF | CP | HS |
| EC:2.3.1.- | TG | PF | CP | HS |
| EC:2.3.3.10 Hydroxymethylglutaryl-CoA synthase. | TG | PF | CP | HS |
| EC:2.6.1.19 4-aminobutyrate transaminase. | TG | PF | CP | HS |
| EC:2.7.2.7 Butyrate kinase. | TG | PF | CP | HS |
| EC:2.8.3.5 3-oxoacid CoA-transferase. | TG | PF | CP | HS |
| EC:2.8.3.8 Acetate CoA-transferase. | TG | PF | CP | HS |
| EC:2.8.3.12 Glutaconate CoA-transferase. | TG | PF | CP | HS |
| EC:3.1.1.22 Hydroxybutyrate-dimer hydrolase. | TG | PF | CP | HS |
| EC:3.1.1.- | TG | PF | CP | HS |
| EC:3.1.2.11 Acetoacetyl-CoA hydrolase. | TG | PF | CP | HS |
| EC:4.1.1.5 Acetolactate decarboxylase. | TG | PF | CP | HS |
| EC:4.1.1.15 Glutamate decarboxylase. | TG | PF | CP | HS |
| EC:4.1.1.70 Glutaconyl-CoA decarboxylase. | TG | PF | CP | HS |
| EC:4.1.3.4 Hydroxymethylglutaryl-CoA lyase. | TG | PF | CP | HS |
| EC:4.2.1.17 Enoyl-CoA hydratase. | TG | PF | CP | HS |
| EC:4.2.1.27 Acetylenecarboxylate hydratase. | TG | PF | CP | HS |
| EC:4.2.1.31 Maleate hydratase. | TG | PF | CP | HS |
| EC:4.2.1.55 3-hydroxybutyryl-CoA dehydratase. | TG | PF | CP | HS |
| EC:4.2.1.- | TG | PF | CP | HS |
| EC:5.1.2.3 3-hydroxybutyryl-CoA epimerase. | TG | PF | CP | HS |
| EC:5.1.2.4 Acetoin racemase. | TG | PF | CP | HS |
| EC:5.2.1.1 Maleate isomerase. | TG | PF | CP | HS |
| EC:5.3.3.3 Vinylacetyl-CoA delta-isomerase. | TG | PF | CP | HS |
| EC:6.2.1.2 Butyrate--CoA ligase. | TG | PF | CP | HS |
| EC:6.2.1.16 Acetoacetate--CoA ligase. | TG | PF | CP | HS |