ID U5NGV5_MARFC Unreviewed; 199 AA. AC U5NGV5; DT 22-JAN-2014, integrated into UniProtKB/TrEMBL. DT 22-JAN-2014, sequence version 1. DT 10-FEB-2021, entry version 27. DE RecName: Full=Cytochrome c oxidase subunit 1 {ECO:0000256|RuleBase:RU000369}; DE EC=7.1.1.9 {ECO:0000256|RuleBase:RU000369}; DE Flags: Fragment; GN Name=COI {ECO:0000313|EMBL:AGY30061.1}; OS Margaritifera falcata (Western pearlshell) (Alasmodon falcata). OG Mitochondrion {ECO:0000313|EMBL:AGY30061.1}. OC Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Bivalvia; OC Autobranchia; Heteroconchia; Palaeoheterodonta; Unionida; Unionoidea; OC Margaritiferidae; Margaritifera. OX NCBI_TaxID=52361 {ECO:0000313|EMBL:AGY30061.1}; RN [1] {ECO:0000313|EMBL:AGY30061.1} RP NUCLEOTIDE SEQUENCE. RX PubMed=24118560; DOI=10.1111/mec.12557; RA Mock K.E., Brim Box J.C., Chong J.P., Furnish J., Howard J.K.; RT "Comparison of population genetic patterns in two widespread freshwater RT mussels with contrasting life histories in western North America."; RL Mol. Ecol. 22:6060-6073(2013). 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] + 4 H(+) + O2 = 4 [Fe(III)cytochrome c] CC + 2 H2O; Xref=Rhea:RHEA:11436, Rhea:RHEA-COMP:10350, Rhea:RHEA- CC COMP:14399, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, CC ChEBI:CHEBI:29033, ChEBI:CHEBI:29034; EC=7.1.1.9; CC Evidence={ECO:0000256|RuleBase:RU000369}; CC -!- PATHWAY: Energy metabolism; oxidative phosphorylation. CC {ECO:0000256|ARBA:ARBA00004673, ECO:0000256|RuleBase:RU000369}. CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane CC {ECO:0000256|RuleBase:RU000369}; Multi-pass membrane protein 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; KF701438; AGY30061.1; -; Genomic_DNA. DR UniPathway; UPA00705; -. DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW. 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:InterPro. DR GO; GO:0020037; F:heme binding; IEA:InterPro. DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW. DR GO; GO:0009060; P:aerobic respiration; IEA:InterPro. 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; PTHR10422; 1. DR Pfam; PF00115; COX1; 1. DR PRINTS; PR01165; CYCOXIDASEI. DR SUPFAM; SSF81442; SSF81442; 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:AGY30061.1}; KW Mitochondrion inner membrane {ECO:0000256|RuleBase:RU000369}; KW Respiratory chain {ECO:0000256|RuleBase:RU000369}; KW Signal {ECO:0000256|SAM:SignalP}; 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..20 FT /evidence="ECO:0000256|SAM:SignalP" FT CHAIN 21..199 FT /note="Cytochrome c oxidase subunit 1" FT /evidence="ECO:0000256|SAM:SignalP" FT /id="PRO_5004663006" FT TRANSMEM 36..60 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 80..104 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 124..149 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 161..188 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..199 FT /note="COX1" FT /evidence="ECO:0000259|PROSITE:PS50855" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:AGY30061.1" FT NON_TER 199 FT /evidence="ECO:0000313|EMBL:AGY30061.1" SQ SEQUENCE 199 AA; 21087 MW; 8E6597B00C544649 CRC64; ALWSGLIGLA LSLLIRAELG QPGSLLGDDQ LYNVIVTAHA FMMIFFLVMP MMIGGFGNWL IPLMIGAPDM AFPRLNNLSF WLLVPALFLL LSSSLVESGV GTGWTVYPPL SSNVSHSGAS VDLAIFSLHL AGASSILGAI NFISTVGNMR SPGVVAERIP LFVWAVTVTA ILLVAALPVL AGAITMLLTD RNLNTSFFD //