OnCo

MT-CO1 (Cytochrome c oxidase subunit 1) is a gene. In the public catalogues the evidence so far is association rather than a proven role. Tied to Myelodysplastic syndromes / neoplasms and Colorectal cancer. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Component of the cytochrome c oxidase, the last enzyme in the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. Cytochrome c oxidase is the component of the respiratory chain that catalyses the reduction of oxygen to water. Electrons originating from reduced cytochrome c in the intermembrane space (IMS) are transferred via the dinuclear copper A centre (CU(A)) of subunit 2 and heme A of subunit 1 to the active site in subunit 1, a binuclear centre (BNC) formed by heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 water molecules using 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix. Location: Mitochondrion inner membrane (UniProt). Locus mitochondria (HGNC).

Where it is found
  • Myelodysplastic syndromes / neoplasms: Open Targets association 0.64 with myelodysplastic syndrome (MONDO_0018881)
  • Colorectal cancer: Open Targets association 0.50 with colorectal cancer (MONDO_0005575)
Class: other · Gene: MT-CO1 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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Resistance routes

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Companion diagnostics

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Literature

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Query for this target: (TITLE:"MT-CO1" OR ABSTRACT:"MT-CO1" OR TITLE:"mitochondrially encoded cytochrome c oxidase I" OR ABSTRACT:"mitochondrially encoded cytochrome c oxidase I" OR TITLE:"Cytochrome c oxidase subunit 1" OR ABSTRACT:"Cytochrome c oxidase subunit 1" OR TITLE:"COX1" OR ABSTRACT:"COX1" OR TITLE:"MTCO1" OR ABSTRACT:"MTCO1") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about MT-CO1, not a curated reading list.

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The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/mt-co1.json. Licence CC BY-NC 4.0.