| KEGG ID | KO | Definition |
| gsu:GSU1467 | K00176 | 2-oxoglutarate:ferredoxin oxidoreductase, ferredoxin subunit |
| gsk:KN400_1494 | K00176 | 2-oxoglutarate:ferredoxin oxidoreductase, ferredoxin subunit |
| gme:Gmet_1361 | K00176 | 2-oxoglutarate:ferredoxin oxidoreductase, ferredoxin subunit |
| gur:Gura_2192 | K00176 | 4Fe-4S ferredoxin, iron-sulfur binding domain protein |
| glo:Glov_1626 | K00176 | 4Fe-4S ferredoxin iron-sulfur binding domain protein |
| gbm:Gbem_2899 | K00176 | 2-oxoglutarate:ferredoxin oxidoreductase, ferredoxin subunit |
| geo:Geob_2665 | K00176 | 2-oxoglutarate:ferredoxin oxidoreductase, ferredoxin subunit |
| gem:GM21_1326 | K00176 | 4Fe-4S ferredoxin iron-sulfur binding domain protein |
| geb:GM18_2786 | K00176 | 4Fe-4S ferredoxin iron-sulfur binding domain protein |
| gpi:GPICK_08725 | K00176 | tungsten formylmethanofuran dehydrogenase |
| gao:A2G06_09655 | K00176 | tungsten formylmethanofuran dehydrogenase |
| gsb:GSUB_04820 | K00176 | tungsten formylmethanofuran dehydrogenase |
| pca:Pcar_1031 | K00176 | 2-oxoglutarate:ferredoxin oxidoreductase, ferredoxin subunit |
| ppd:Ppro_2326 | K00176 | 4Fe-4S ferredoxin, iron-sulfur binding domain protein |
| pace:A6070_10125 | K00176 | tungsten formylmethanofuran dehydrogenase |
| pef:A7E78_05915 | K00176 | tungsten formylmethanofuran dehydrogenase |
| des:DSOUD_1471 | K00176 | tungsten formylmethanofuran dehydrogenase |
| deu:DBW_1360 | K00176 | 2-oxoglutarate:ferredoxin oxidoreductase, ferredoxin subunit |