| TCID | Name | Organismal Type | Example |
|---|---|---|---|
| 3.D.6.1.1 | NADH:ferredoxin oxidoreductase | Bacteria | RnfABCDEGH of Rhodobacter capsulatus |
| 3.D.6.1.2 | The Rnf-type NADH dehydrogenase, RnfCD (Imkamp et al., 2007). Note: RnfD may be truncated as almost all homologues have 300-330aas with 6-7 TMSs. | Bacteria | RnfCD of Acetobacterium woodii: RnfC (443aas; 0TMSs) (A8TCK2) RnfD (132aas; 2TMSs) (A8TCK3) |
