| 2CKJ | e2ckjA5 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2ckjB6 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2ckjC6 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2ckjD1 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2ckjB2 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2ckjC2 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2ckjD5 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2ckjA17 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2ckjA6 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2ckjB5 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2ckjC5 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2ckjD3 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2ckjA4 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjA7 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjB3 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjB4 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjC3 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjC7 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjD6 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjD7 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2ckjD4 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2ckjB14 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2ckjA18 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2ckjC17 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2ckjA3 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |
| e2ckjB13 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |
| e2ckjC16 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |
| e2ckjD11 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |
| 2E1Q | e2e1qA1 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2e1qB1 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2e1qC1 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2e1qD1 | 179.1.1 | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | CO dehydrogenase ISP C-domain like | Fer2_2 |
| e2e1qA5 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2e1qB5 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2e1qC5 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2e1qD5 | 217.1.1 | FAD-binding domain-like | FAD-binding domain | FAD-binding domain | FAD_binding_5 |
| e2e1qA3 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2e1qB3 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2e1qC3 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2e1qD3 | 221.1.1 | beta-Grasp | Ubiquitin-related | Ubiquitin-like | Fer2 |
| e2e1qA4 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qA7 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qB4 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qB6 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qC4 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qC7 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qD2 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qD7 | 231.1.1 | MocoBD/DmpA-related | MocoBD/DmpA-related | Molybdenum cofactor-binding domain | MoCoBD_1 |
| e2e1qB14 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2e1qD14 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2e1qC17 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2e1qA14 | 244.3.1 | FAD-linked reductases, C-terminal domain-like | SufE/NifU | SufE/NifU | NifU_N |
| e2e1qB13 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |
| e2e1qD13 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |
| e2e1qC16 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |
| e2e1qA13 | 325.1.1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | CO dehydrogenase molybdoprotein N-domain-like | Ald_Xan_dh_C |