| MMDBr0025660 | Hydrogen sulfide | Tetra-mu3-sulfido-tetrairon(2+) | L-aspartate semialdehyde sulfurtransferase | Sulfuration | Not Available | 0 | 2 | RHEA |
| MMDBr0025502 | Tetra-mu3-sulfido-tetrairon(1+) | Tetra-mu3-sulfido-tetrairon(2+) | Digeranylgeranylglycerophospholipid reductase | Reduction | Not Available | 0 | 12 | RHEA |
| MMDBr0025501 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | Digeranylgeranylglycerophospholipid reductase | Reduction | Not Available | 0 | 13 | RHEA |
| MMDBr0024951 | Tetra-mu3-sulfido-tetrairon(1+) | Tetra-mu3-sulfido-tetrairon(2+) | Digeranylgeranylglycerophospholipid reductase | Reduction | Not Available | 0 | 12 | RHEA |
| MMDBr0024950 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | Digeranylgeranylglycerophospholipid reductase | Reduction | Not Available | 0 | 12 | RHEA |
| MMDBr0024928 | Tetra-mu3-sulfido-tetrairon(1+) | Tetra-mu3-sulfido-tetrairon(2+) | Pentalenic acid synthase | Synthesis | Not Available | 0 | 1 | RHEA |
| MMDBr0024852 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | Benzoyl-CoA reductase subunit C | Reduction | Not Available | 0 | 4 | RHEA |
| MMDBr0024850 | oxalate | Tetra-mu3-sulfido-tetrairon(1+) | Oxalate oxidoreductase subunit delta | Redox reaction | Not Available | 0 | 3 | RHEA |
| MMDBr0024849 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | 4-hydroxybenzoyl-CoA reductase subunit gamma | Reduction | Not Available | 0 | 3 | 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 |
| MMDBr0024819 | Progesterone | Tetra-mu3-sulfido-tetrairon(2+) | Cytochrome P450(MEG) | Hydroxylation | Not Available | 0 | 1 | RHEA |
| MMDBr0024793 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | Phycoerythrobilin synthase | Synthesis | Not Available | 0 | 1 | RHEA |
| MMDBr0024709 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | Phycoerythrobilin:ferredoxin oxidoreductase | Redox reaction | Not Available | 0 | 20 | RHEA |
| MMDBr0024555 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | 6-hydroxynicotinate reductase | Reduction | Not Available | 0 | 1 | RHEA |
| MMDBr0024342 | Tetra-mu3-sulfido-tetrairon(2+) | Tetra-mu3-sulfido-tetrairon(1+) | 15,16-dihydrobiliverdin:ferredoxin oxidoreductase | Redox reaction | Not Available | 0 | 19 | RHEA |
