| Q7SIF4 | n/a | 8cgs | CL | A | 5014 | e8cgsA4 | Rossmann-like | Formate dehydrogenase/DMSO reductase, domains 2 and 3 | Formate dehydrogenase/DMSO reductase, domains 2 and 3 | Molybdopterin |
| Q7SIF4 | n/a | 8cgs | CL | C | 5111 | e8cgsC4 | Formate dehydrogenase/DMSO reductase, domain 1 | Formate dehydrogenase/DMSO reductase, domain 1 | Formate dehydrogenase/DMSO reductase, domain 1 | Rieske_3 |
| Q7SIF4 | n/a | 8cgs | CL | E | 5014 | e8cgsE1 | Formate dehydrogenase/DMSO reductase, domain 1 | Formate dehydrogenase/DMSO reductase, domain 1 | Formate dehydrogenase/DMSO reductase, domain 1 | Rieske_3 |