| Sl. No. | Species | ND5 | ND6 | ||
| NCBI Reference | Length | NCBI Reference | Length | ||
| 1 | HUMAN | AP-000649.1 | 603 | AP-000650.1 | 174 |
| 2 | GORILLA | NP-008222.1 | 603 | NP-008223.1 | 174 |
| 3 | COMMON CHIMPANZEE | NP-008196.1 | 603 | NP-008197.1 | 174 |
| 4 | PYGMY CHIMPANZEE | NP-008209.1 | 603 | NP-008210.1 | 174 |
| 5 | FIN WHALE | NP-006899.1 | 606 | NP-006900.1 | 175 |
| 6 | BLUE WHALE | NP-007066.1 | 606 | NP-007067.1 | 175 |
| 7 | RAT | AP-004902.1 | 610 | AP-004903.1 | 172 |
| 8 | MOUSE | NP-904338.1 | 607 | NP-904339.1 | 172 |
| 9 | OPOSSUM | NP-007105.1 | 602 | NP-007106.1 | 168 |