ID B3GJG4_CRIPL Unreviewed; 206 AA. AC B3GJG4; DT 22-JUL-2008, integrated into UniProtKB/TrEMBL. DT 22-JUL-2008, sequence version 1. DT 27-NOV-2024, entry version 61. 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:ACD76922.1}; OS Cristaria plicata (Cockscomb pearl mussel). OG Mitochondrion {ECO:0000313|EMBL:ACD76922.1}. OC Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Bivalvia; OC Autobranchia; Heteroconchia; Palaeoheterodonta; Unionida; Unionoidea; OC Unionidae; Anodontinae; Cristaria. OX NCBI_TaxID=165446 {ECO:0000313|EMBL:ACD76922.1}; RN [1] {ECO:0000313|EMBL:ACD76922.1} RP NUCLEOTIDE SEQUENCE. RC TISSUE=Mantle {ECO:0000313|EMBL:ACD76922.1}; RA Jia M.J., Li J.L.; RT "Sequence Analysis of Mitochondrial Cytochrome Oxidase Subunit (COI) Gene RT of Cristaria plicata from the Lower Yangtze Region."; RL Submitted (MAY-2008) to the EMBL/GenBank/DDBJ databases. 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] + O2 + 8 H(+)(in) = 4 Fe(III)- CC [cytochrome c] + 2 H2O + 4 H(+)(out); 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|RuleBase:RU000369}; 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: 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; EU698901; ACD76922.1; -; Genomic_DNA. DR AlphaFoldDB; B3GJG4; -. DR UniPathway; UPA00705; -. DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell. 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|RuleBase:RU000369, ECO:0000256|SAM:Phobius}; KW Metal-binding {ECO:0000256|RuleBase:RU000369}; KW Mitochondrion {ECO:0000256|RuleBase:RU000369, ECO:0000313|EMBL:ACD76922.1}; 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 23..49 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 70..88 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 108..132 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 153..180 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..206 FT /note="Cytochrome oxidase subunit I profile" FT /evidence="ECO:0000259|PROSITE:PS50855" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:ACD76922.1" FT NON_TER 206 FT /evidence="ECO:0000313|EMBL:ACD76922.1" SQ SEQUENCE 206 AA; 21901 MW; F2E38B6A644BBBC6 CRC64; LALSLLIRAE LGQPGSLLGD DQLYNVIVTA HAFMMIFFLV MPMMIGGFGN WLIPLMIGAP DMAFPRLNNL SFWLLVPALF LLLSSSLVES GVGTGWTVYP PLSGNVAHSG ASVDLAIFSL HLAGASSILG AINFISTVGN MRSPGLVAER IPLFVWAVTV TAALLVAALP VLAGAITMLL TDRNLNTSFF DPTGGGDPIL YMHLFW //