| [A] Sulfolobus acidocaldarius | SULAC02000 | FENR2_SULAC | thioredoxin reductase |
| [A] Picrophilus torridus | PICTO00431 | FENR_PICTO | Ferredoxin--NADP reductase |
| [B] Chlorobaculum parvum (strain NCIB 8327) | CHLP801573 | FENR_CHLP8 | FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Chlorobium tepidum | CHLTE01488 | FENR_CHLTE | Ferredoxin--NADP reductase |
| [B] Chlorobium limicola (strain DSM 245 / NBRC 103803) | CHLL201641 | FENR_CHLL2 | FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Chlorobium phaeobacteroides (strain BS1) | CHLPB01641 | FENR_CHLPB | FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Chlorobium phaeobacteroides (strain DSM 266) | CHLPD01800 | FENR_CHLPD | FAD-dependent pyridine nucleotide-disulphide oxidoreductase PFAM: FAD-dependent pyridine nucleotide-disulphide oxidoreductase KEGG: plt:Plut_1516 thioredoxin reductase, putative |
| [B] Pelodictyon luteolum (strain DSM 273) | PELLD01472 | ABB24373.1 | thioredoxin reductase, putative |
| [B] Pelodictyon phaeoclathratiforme (strain DSM 5477 / BU-1) | PELPB00939 | FENR_PELPB | FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Prosthecochloris aestuarii (strain DSM 271 / SK 413) | PROA201557 | FENR_PROA2 | FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Thermomicrobium roseum (strain ATCC 27502 / DSM 5159 / P-2) | THERP02247 | B9L3G2 | Thioredoxin reductase |
| [B] Exiguobacterium sibiricum (strain DSM 17290 / JCM 13490 / 255-15) | EXIS202267 | FENR1_EXIS2 | Thioredoxin-disulfide reductase |
| [B] Lactobacillus fermentum (strain IFO 3956 / LMG 18251) | LACF301680 | FENR_LACF3 | Thioredoxin reductase |
| [B] Streptococcus agalactiae (serotype III) | STRA301324 | FENR_STRA3 | similar to thioredoxin reductase unknown |
| [B] Streptococcus agalactiae (serotype V) | STRA501305 | FENR_STRA5 | identified by match to PFAM protein family HMM PF00070 pyridine nucleotide-disulphide oxidoreductase family protein |
| [B] Streptococcus agalactiae serotype Ia | STRA101252 | FENR_STRA1 | identified by match to protein family HMM PF00070; match to protein family HMM PF07992 pyridine nucleotide-disulphide oxidoreductase family protein |
| [B] Streptococcus suis (strain 98HAH33) | STRS201978 | ABP93149.1 | Thioredoxin reductase |
| [B] Bradyrhizobium sp. (strain BTAi1 / ATCC BAA-1182) | BRASB05169 | FENR_BRASB | Putative thioredoxin reductase, FAD/NAD(P)- binding |
| [B] Bradyrhizobium sp. (strain ORS278) | BRASO04786 | FENR_BRASO | Putative thioredoxin reductase, FAD/NAD(P)- binding |
| [B] Rhizobium loti | RHILO00624 | FENR_RHILO | thioredoxin reductase |
| [B] Acidovorax sp. (strain JS42) | ACISJ01654 | FENR_ACISJ | FAD-dependent pyridine nucleotide-disulphide oxidoreductase PFAM: FAD-dependent pyridine nucleotide-disulphide oxidoreductase KEGG: rme:Rmet_2452 FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Delftia acidovorans (strain DSM 14801 / SPH-1) | DELAS04566 | FENR_DELAS | FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Diaphorobacter sp. (strain TPSY) | DIAST01887 | B9MA17 | FAD-dependent pyridine nucleotide-disulphide oxidoreductase |
| [B] Leptothrix cholodnii (strain ATCC 51168 / LMG 8142 / SP-6) | LEPCP02764 | FENR_LEPCP | FAD-dependent pyridine nucleotide-disulphide oxidoreductase precursor |