| MMDBr0024380 | Iron(3+) | Hydrogen Ion | Ubiquinol-cytochrome c reductase iron-sulfur subunit | Reduction | Not Available | 0 | 38 | RHEA |
| MMDBr0024403 | Hydrogen Ion | Carbon dioxide | 3-oxoacyl-[acyl-carrier-protein] synthase 3 | Synthesis | Not Available | 0 | 410 | RHEA |
| MMDBr0024493 | NAD | Hydrogen Ion | Dihydrolipoyl dehydrogenase | Dehydrogenation | Not Available | 0 | 54 | RHEA |
| MMDBr0024650 | di-mu-Sulfido-diiron(1+) | di-mu-Sulfido-diiron(2+) | Ferredoxin--NADP reductase | Dehydrogenation; Reduction | Not Available | 0 | 245 | RHEA |
| MMDBr0024686 | Nitrogen | Hydrogen | Nitrogenase iron protein | Nitrogen fixation | Not Available | 0 | 192 | RHEA |
| MMDBr0024705 | Molybdate | Molybdate | Molybdenum import ATP-binding protein ModC | Transport | Not Available | 0 | 75 | RHEA |
| MMDBr0024706 | Water | Hydroxylamine | Hydroxylamine reductase | Reduction | Not Available | 0 | 158 | RHEA |
| MMDBr0024757 | L-Histidine | Pyruvic acid | Phosphoenolpyruvate-protein phosphotransferase | Transfer of phosphate group | Not Available | 0 | 51 | RHEA |
| MMDBr0024833 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | Light-independent protochlorophyllide reductase iron-sulfur ATP-binding protein | Reduction | Not Available | 0 | 219 | RHEA |
| MMDBr0024838 | Dimethylsulfide | Dimethyl sulfoxide | Putative dimethyl sulfoxide reductase catalytic subunit A | Reduction | Not Available | 0 | 5 | RHEA |
| MMDBr0024966 | L-Threonine | Hydrogen Ion | FAD:protein FMN transferase | Transfer of the FMN moiety of FAD | Not Available | 0 | 14 | RHEA |
| MMDBr0025318 | D-Fructofuranose | L-Histidine | PTS system fructose-specific EIIB component | Phosphorylation | Not Available | 0 | 25 | RHEA |
| MMDBr0025326 | Guanosine triphosphate | 5'-Deoxyadenosine | Probable GTP 3',8-cyclase | Cycle formation | Not Available | 0 | 268 | RHEA |
| MMDBr0025568 | Carbamoylphosphate | Hydrogen Ion | Probable carbamoyltransferase HypF | Transfer of a carbamoyl group | Not Available | 0 | 8 | RHEA |
| MMDBr0025569 | Adenosine triphosphate | Hydrogen Ion | Carbamoyl dehydratase HypE | Hydration/dehydration of C-O bond | Not Available | 0 | 6 | RHEA |
| MMDBr0025650 | Hydrogen Ion | Hydrogen Ion | NADH-quinone oxidoreductase subunit C/D | Redox reaction | Not Available | 0 | 2926 | RHEA |
| MMDBr0024546 | (6R)-5,10-methylene-5,6,7,8-tetrahydrofolic acid | (6S)-5,6,7,8-tetrahydrofolic acid | Methylenetetrahydrofolate--tRNA-(uracil-5-)-methyltransferase TrmFO | Methylation | Not Available | 0 | 256 | RHEA |
| MMDBr0024747 | NADP(+) | Uridine 5'-monophosphate | Probable tRNA-dihydrouridine synthase | Synthesis | Not Available | 0 | 49 | RHEA |
| MMDBr0024862 | 15-cis-phytoene | all-trans-neurosporene | Phytoene desaturase (neurosporene-forming) | Desaturation | Not Available | 0 | 2 | RHEA |
| MMDBr0024867 | rhodopin | (3E)-3,4-didehydrorhodopin | 1-hydroxycarotenoid 3,4-desaturase | Desaturation | Not Available | 0 | 5 | RHEA |
| MMDBr0024901 | di-mu-Sulfido-diiron(1+) | di-mu-Sulfido-diiron(2+) | Spheroidene monooxygenase | Oxygenation | Not Available | 0 | 1 | RHEA |
| MMDBr0024902 | di-mu-Sulfido-diiron(1+) | di-mu-Sulfido-diiron(2+) | Spheroidene monooxygenase | Oxygenation | Not Available | 0 | 1 | RHEA |
| MMDBr0024903 | di-mu-Sulfido-diiron(1+) | di-mu-Sulfido-diiron(2+) | Spheroidene monooxygenase | Oxygenation | Not Available | 0 | 1 | RHEA |
| MMDBr0024970 | di-mu-Sulfido-diiron(2+) | di-mu-Sulfido-diiron(1+) | Chlorophyllide reductase subunit Z | Reduction | Not Available | 0 | 10 | RHEA |
| MMDBr0025309 | di-mu-Sulfido-diiron(2+) | di-mu-Sulfido-diiron(1+) | Chlorophyllide reductase subunit Z | Reduction | Not Available | 0 | 10 | RHEA |
