| A9N8X3 | NUOA_COXBR | Coxiella burnetii (strain RSA 331 / Henzerling II) | nuoA COXBURSA331_A1618 | Detail |
| A5CXG5 | NUOI_VESOH | Vesicomyosocius okutanii subsp. Calyptogena okutanii (strain HA) | nuoI COSY_0237 | Detail |
| O67342 | NUON1_AQUAE | Aquifex aeolicus (strain VF5) | nuoN1 aq_1322 | Detail |
| Q5Y4Q9 | NU2M_BOSMU | Bos mutus grunniens (Wild yak) (Bos grunniens) | MT-ND2 MTND2 NADH2 ND2 | Detail |
| A4SXQ2 | NUOB_POLAQ | Polynucleobacter asymbioticus (strain DSM 18221 / CIP 109841 / QLW-P1DMWA-1) (Polynucleobacter necessarius subsp. asymbioticus) | nuoB Pnuc_1050 | Detail |
| Q1IS52 | NUON1_KORVE | Koribacter versatilis (strain Ellin345) | nuoN1 Acid345_1296 | Detail |
| Q6D2R8 | NUOB_PECAS | Pectobacterium atrosepticum (strain SCRI 1043 / ATCC BAA-672) (Erwinia carotovora subsp. atroseptica) | nuoB ECA3027 | Detail |
| A1ADD6 | NUOA_ECOK1 | Escherichia coli O1:K1 / APEC | nuoA Ecok1_21820 APECO1_4277 | Detail |
| A2T383 | NU4C_ANGEV | Angiopteris evecta (Mule's foot fern) (Polypodium evectum) | ndhD | Detail |
| A6U7W5 | NUOC_SINMW | Sinorhizobium medicae (strain WSM419) (Ensifer medicae) | nuoC Smed_0890 | Detail |