| KEGG ID | KO | Definition |
| dps:DP2322 | K00176 | related to 2-ketoglutarate oxidoreductase, delta chain |
| dpr:Despr_1764 | K00176 | 2-ketoglutarate oxidoreductase subunit delta |
| dao:Desac_1830 | K00176 | 4Fe-4S ferredoxin iron-sulfur binding domain-containing protein |
| sfu:Sfum_1165 | K00176 | 4Fe-4S ferredoxin, iron-sulfur binding domain protein |