ID A0A6B9Y1M7_SALSA Unreviewed; 136 AA. AC A0A6B9Y1M7; DT 17-JUN-2020, integrated into UniProtKB/TrEMBL. DT 17-JUN-2020, sequence version 1. DT 29-MAY-2024, entry version 21. DE RecName: Full=Cytochrome c oxidase subunit 1 {ECO:0000256|ARBA:ARBA00015947, ECO:0000256|RuleBase:RU000369}; DE EC=7.1.1.9 {ECO:0000256|ARBA:ARBA00012949, ECO:0000256|RuleBase:RU000369}; DE Flags: Fragment; GN Name=COI {ECO:0000313|EMBL:QHS02173.1}; OS Salmo salar (Atlantic salmon). OG Mitochondrion {ECO:0000313|EMBL:QHS02173.1}. OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Actinopterygii; Neopterygii; Teleostei; Protacanthopterygii; Salmoniformes; OC Salmonidae; Salmoninae; Salmo. OX NCBI_TaxID=8030 {ECO:0000313|EMBL:QHS02173.1}; RN [1] {ECO:0000313|EMBL:QHS02173.1} RP NUCLEOTIDE SEQUENCE. RA Chen K.-C., Zakaria D., Altarawneh H., Andrews G., Ganesan G., John K., RA Khan S., Ladumor H.; RL Submitted (NOV-2018) to the EMBL/GenBank/DDBJ databases. RN [2] {ECO:0000313|EMBL:QHS02173.1} RP NUCLEOTIDE SEQUENCE. RX PubMed=30742542; RA Chen K.C., Zakaria D., Altarawneh H., Andrews G.N., Ganesan G.S., RA John K.M., Khan S., Ladumor H.; RT "DNA barcoding of fish species reveals low rate of package mislabeling in RT Qatar."; RL Genome 62:69-76(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=Cu cation; Xref=ChEBI:CHEBI:23378; CC Evidence={ECO:0000256|ARBA:ARBA00001935}; 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 -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi- CC pass membrane protein {ECO:0000256|ARBA:ARBA00004141}. Mitochondrion CC inner membrane {ECO:0000256|ARBA:ARBA00004448, CC ECO:0000256|RuleBase:RU000369}; Multi-pass membrane protein CC {ECO:0000256|ARBA:ARBA00004448, 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; MK216623; QHS02173.1; -; Genomic_DNA. DR UniPathway; UPA00705; -. DR GO; GO:0005751; C:mitochondrial respiratory chain complex IV; IEA:TreeGrafter. 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:0015990; P:electron transport coupled proton transport; IEA:TreeGrafter. DR GO; GO:0006123; P:mitochondrial electron transport, cytochrome c to oxygen; IEA:TreeGrafter. DR Gene3D; 1.20.210.10; Cytochrome c oxidase-like, subunit I domain; 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 PANTHER; PTHR10422:SF18; 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|ARBA:ARBA00023136, ECO:0000256|RuleBase:RU000369}; KW Metal-binding {ECO:0000256|RuleBase:RU000369}; KW Mitochondrion {ECO:0000256|RuleBase:RU000369, ECO:0000313|EMBL:QHS02173.1}; KW Mitochondrion inner membrane {ECO:0000256|RuleBase:RU000369}; KW Respiratory chain {ECO:0000256|RuleBase:RU000369}; KW Signal {ECO:0000256|SAM:SignalP}; Sodium {ECO:0000256|ARBA:ARBA00023053}; KW Transmembrane {ECO:0000256|RuleBase:RU000369, ECO:0000256|SAM:Phobius}; KW Transmembrane helix {ECO:0000256|SAM:Phobius}; KW Transport {ECO:0000256|RuleBase:RU000369}. FT SIGNAL 1..39 FT /evidence="ECO:0000256|SAM:SignalP" FT CHAIN 40..136 FT /note="Cytochrome c oxidase subunit 1" FT /evidence="ECO:0000256|SAM:SignalP" FT /id="PRO_5025364585" FT TRANSMEM 64..90 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 102..128 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..136 FT /note="Cytochrome oxidase subunit I profile" FT /evidence="ECO:0000259|PROSITE:PS50855" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:QHS02173.1" FT NON_TER 136 FT /evidence="ECO:0000313|EMBL:QHS02173.1" SQ SEQUENCE 136 AA; 14340 MW; 70F5CAC96DFE77B3 CRC64; LIPLMIGAPD MAFPRMNNMS FWLLPPSFLL LLASSGVEAG AGTGWTVYPP LAGNLAHAGA SVDLTIFSLH LAGISSILGA INFITTIINM KPPAISQYQT PLFVWAVLVT AVLLLLSLPV LAAGITMLXT DRNLNT //