ID A0A5J6NS80_9DIPT Unreviewed; 214 AA. AC A0A5J6NS80; DT 11-DEC-2019, integrated into UniProtKB/TrEMBL. DT 11-DEC-2019, sequence version 1. DT 14-DEC-2022, entry version 14. DE RecName: Full=Cytochrome c oxidase subunit 1 {ECO:0000256|ARBA:ARBA00015947, ECO:0000256|RuleBase:RU000369}; DE EC=7.1.1.9 {ECO:0000256|RuleBase:RU000369}; DE Flags: Fragment; GN Name=COI {ECO:0000313|EMBL:QEY10722.1}; OS Culicoides paolae. OG Mitochondrion {ECO:0000313|EMBL:QEY10722.1}. OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota; OC Neoptera; Endopterygota; Diptera; Nematocera; Chironomoidea; OC Ceratopogonidae; Ceratopogoninae; Culicoides. OX NCBI_TaxID=1494423 {ECO:0000313|EMBL:QEY10722.1}; RN [1] {ECO:0000313|EMBL:QEY10722.1} RP NUCLEOTIDE SEQUENCE. RC STRAIN=MA002-D3-01 {ECO:0000313|EMBL:QEY10721.1}, and MA002-D3-02 RC {ECO:0000313|EMBL:QEY10722.1}; RX PubMed=31551074; RA Bourquia M., Garros C., Rakotoarivony I., Gardes L., Huber K., Boukhari I., RA Delecolle J.C., Baldet T., Mignotte A., Lhor Y., Khallaayoune K., RA Balenghien T.; RT "Update of the species checklist of Culicoides Latreille, 1809 biting RT midges (Diptera: Ceratopogonidae) of Morocco."; RL Parasit. Vectors 12:459-459(2019). CC -!- FUNCTION: Component of the cytochrome c oxidase, the last enzyme in the CC mitochondrial electron transport chain which drives oxidative CC phosphorylation. The respiratory chain contains 3 multisubunit CC complexes succinate dehydrogenase (complex II, CII), ubiquinol- CC cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CC CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to CC transfer electrons derived from NADH and succinate to molecular oxygen, CC creating an electrochemical gradient over the inner membrane that CC drives transmembrane transport and the ATP synthase. Cytochrome c CC oxidase is the component of the respiratory chain that catalyzes the CC reduction of oxygen to water. Electrons originating from reduced CC cytochrome c in the intermembrane space (IMS) are transferred via the CC dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1 CC to the active site in subunit 1, a binuclear center (BNC) formed by CC heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 CC water molecules using 4 electrons from cytochrome c in the IMS and 4 CC protons from the mitochondrial matrix. {ECO:0000256|RuleBase:RU000369}. CC -!- CATALYTIC ACTIVITY: CC Reaction=4 Fe(II)-[cytochrome c] + 8 H(+)(in) + O2 = 4 Fe(III)- CC [cytochrome c] + 4 H(+)(out) + 2 H2O; Xref=Rhea:RHEA:11436, CC Rhea:RHEA-COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15377, CC ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:29033, CC ChEBI:CHEBI:29034; EC=7.1.1.9; CC Evidence={ECO:0000256|ARBA:ARBA00029331}; CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:11437; CC Evidence={ECO:0000256|ARBA:ARBA00029331}; CC -!- COFACTOR: CC Name=heme; Xref=ChEBI:CHEBI:30413; CC Evidence={ECO:0000256|ARBA:ARBA00001971}; CC -!- PATHWAY: Energy metabolism; oxidative phosphorylation. CC {ECO:0000256|ARBA:ARBA00004673, ECO:0000256|RuleBase:RU000369}. CC -!- SUBUNIT: Component of the cytochrome c oxidase (complex IV, CIV), a CC multisubunit enzyme composed of a catalytic core of 3 subunits and CC several supernumerary subunits. The complex exists as a monomer or a CC dimer and forms supercomplexes (SCs) in the inner mitochondrial CC membrane with ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 CC complex, complex III, CIII). {ECO:0000256|ARBA:ARBA00011164}. CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane CC {ECO:0000256|ARBA:ARBA00004448, ECO:0000256|RuleBase:RU000369}; Multi- CC pass membrane protein {ECO:0000256|ARBA:ARBA00004448, CC ECO:0000256|RuleBase:RU000369}. CC -!- SIMILARITY: Belongs to the heme-copper respiratory oxidase family. CC {ECO:0000256|ARBA:ARBA00009578, ECO:0000256|RuleBase:RU000369}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; MK732299; QEY10721.1; -; Genomic_DNA. DR EMBL; MK732300; QEY10722.1; -; Genomic_DNA. DR AlphaFoldDB; A0A5J6NS80; -. DR UniPathway; UPA00705; -. DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell. DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW. DR GO; GO:0004129; F:cytochrome-c oxidase activity; IEA:UniProtKB-EC. DR GO; GO:0020037; F:heme binding; IEA:InterPro. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. DR GO; GO:0006119; P:oxidative phosphorylation; IEA:UniProtKB-UniPathway. DR Gene3D; 1.20.210.10; -; 1. DR InterPro; IPR023616; Cyt_c_oxase-like_su1_dom. DR InterPro; IPR036927; Cyt_c_oxase-like_su1_sf. DR InterPro; IPR000883; Cyt_C_Oxase_1. DR PANTHER; PTHR10422; CYTOCHROME C OXIDASE SUBUNIT 1; 1. DR Pfam; PF00115; COX1; 1. DR PRINTS; PR01165; CYCOXIDASEI. DR SUPFAM; SSF81442; Cytochrome c oxidase subunit I-like; 1. DR PROSITE; PS50855; COX1; 1. PE 3: Inferred from homology; KW Copper {ECO:0000256|RuleBase:RU000369}; KW Electron transport {ECO:0000256|RuleBase:RU000369}; KW Heme {ECO:0000256|RuleBase:RU000369}; Iron {ECO:0000256|RuleBase:RU000369}; KW Membrane {ECO:0000256|RuleBase:RU000369, ECO:0000256|SAM:Phobius}; KW Metal-binding {ECO:0000256|RuleBase:RU000369}; KW Mitochondrion {ECO:0000256|RuleBase:RU000369, ECO:0000313|EMBL:QEY10722.1}; KW Mitochondrion inner membrane {ECO:0000256|RuleBase:RU000369}; KW Respiratory chain {ECO:0000256|RuleBase:RU000369}; KW Transmembrane {ECO:0000256|RuleBase:RU000369, ECO:0000256|SAM:Phobius}; KW Transmembrane helix {ECO:0000256|SAM:Phobius}; KW Transport {ECO:0000256|RuleBase:RU000369}. FT TRANSMEM 32..57 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 78..100 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 120..145 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 157..184 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..214 FT /note="COX1" FT /evidence="ECO:0000259|PROSITE:PS50855" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:QEY10722.1" FT NON_TER 214 FT /evidence="ECO:0000313|EMBL:QEY10722.1" SQ SEQUENCE 214 AA; 23284 MW; FEF6AD8104B9CF0B CRC64; GLIGSVLSLL LRMELSHPGN LFGNDQMYNV IVTAHAFVMI FFMVMPIMIG GFGNWLVPLM LGAPDMAFPR MNNLSFWMLP PALSLLLTSS LVENGAGTGW TVYPPLSSNI AHAGPSVDLA IFSLHLAGIS SILGAVNFIT TIMNMRPLSM LYSQMPLFVW SVLITAILLL LSLPVLAGAI TMLLTDRNFN TSFFDPAGGG DPILYQHLFW FFGT //