| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P68530 | Cytochrome c oxidase subunit 2; Cytochrome c oxidase polypeptide II; | MT-CO2; COII COXII MTCO2; | YP_209208.1; | 227 | cow |
| P00415 | Cytochrome c oxidase subunit 3; Cytochrome c oxidase polypeptide III; | MT-CO3; COIII COXIII MTCO3; | NULL | 261 | cow |
| P00423 | Cytochrome c oxidase subunit 4 isoform 1, mitochondrial; Cytochrome c oxidase polypeptide IV; Cytochrome c oxidase subunit IV isoform 1; COX IV-1; | COX4I1; COX4; | NP_001001439.1;XP_005218495.1; | 169 | cow |
| P00426 | Cytochrome c oxidase subunit 5A, mitochondrial; Cytochrome c oxidase polypeptide Va; | COX5A; | NP_001002891.1;XP_005221971.1; | 152 | cow |
| P00428 | Cytochrome c oxidase subunit 5B, mitochondrial; Cytochrome c oxidase polypeptide VIa; Cytochrome c oxidase polypeptide Vb; | COX5B; | NP_001029218.1; | 129 | cow |
| P04038 | Cytochrome c oxidase subunit 6C; Cytochrome c oxidase polypeptide VIc; Cytochrome c oxidase subunit STA; | COX6C; | NP_001231040.1; | 74 | cow |
| P13183 | Cytochrome c oxidase subunit 7B, mitochondrial; Cytochrome c oxidase polypeptide VIIb; IHQ; | COX7B; | NP_786989.3; | 80 | cow |
| P00430 | Cytochrome c oxidase subunit 7C, mitochondrial; Cytochrome c oxidase polypeptide VIIIA; Cytochrome c oxidase polypeptide VIIc; | COX7C; COX7CP1; | XP_002705952.1;XP_005209785.1; | 63 | cow |
| Q3T061 | Cytochrome c oxidase subunit 7A-related protein, mitochondrial; Cytochrome c oxidase subunit VIIa-related protein; | COX7A2L; | NP_001029867.1; | 114 | cow |
| P14622 | Cytochrome c oxidase subunit 8A, mitochondrial; Cytochrome c oxidase polypeptide VIII-liver; Cytochrome c oxidase subunit 8-2; IX; | COX8A; COX8 COX8L; | NP_776449.2; | 69 | cow |
| P10175 | Cytochrome c oxidase subunit 8B, mitochondrial; Cytochrome c oxidase polypeptide VIII-heart; Cytochrome c oxidase subunit 8-1; Cytochrome c oxidase subunit 8H; IX; VIIIb; | COX8B; COX8H; | NP_001107989.1; | 70 | cow |
| Q3SZM6 | COX assembly mitochondrial protein homolog; Cmc1p; | CMC1; | NP_001070016.1; | 106 | cow |
| Q2NKR3 | COX assembly mitochondrial protein 2 homolog; | CMC2; | NP_001106646.1; | 79 | cow |
| Q32KX8 | UPF0585 protein C16orf13 homolog; | NULL | NP_001033195.1; | 204 | cow |
| Q3ZBU3 | Uncharacterized protein C16orf59 homolog; | NULL | NP_001192308.1; | 443 | cow |
| Q2KIS6 | Uncharacterized protein C16orf71 homolog; | NULL | NP_001040086.1; | 361 | cow |
| Q32KT0 | UPF0547 protein C16orf87 homolog; | NULL | NP_001071513.1; | 154 | cow |
| Q32LI1 | Uncharacterized protein C16orf90 homolog; | NULL | NP_001193407.1; | 175 | cow |
| P00189 | Cholesterol side-chain cleavage enzyme, mitochondrial; EC 1.14.15.6; CYPXIA1; Cholesterol desmolase; Cytochrome P450 11A1; Cytochrome P450(scc); | CYP11A1; | NP_788817.1; | 520 | cow |
| P05185 | Steroid 17-alpha-hydroxylase/17,20 lyase; EC 1.14.99.9; EC 4.1.2.30; 17-alpha-hydroxyprogesterone aldolase; CYPXVII; Cytochrome P450 17A1; Cytochrome P450-C17; Cytochrome P450c17; | CYP17A1; CYP17; | NP_776729.1;XP_005200162.1; | 509 | cow |
