ID A0A097I393_9BILA Unreviewed; 219 AA. AC A0A097I393; DT 07-JAN-2015, integrated into UniProtKB/TrEMBL. DT 07-JAN-2015, sequence version 1. DT 29-SEP-2021, entry version 24. 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=CO1 {ECO:0000313|EMBL:AIT55310.1}; OS Gordius cf. robustus N279. OG Mitochondrion {ECO:0000313|EMBL:AIT55310.1}. OC Eukaryota; Metazoa; Ecdysozoa; Nematomorpha; Gordioida; Gordea; Gordioidea; OC Gordiidae; Gordius. OX NCBI_TaxID=1561121 {ECO:0000313|EMBL:AIT55310.1}; RN [1] {ECO:0000313|EMBL:AIT55310.1} RP NUCLEOTIDE SEQUENCE. RC STRAIN=N279 {ECO:0000313|EMBL:AIT55310.1}; RX PubMed=25280636; RA Hanelt B., Schmidt-Rhaesa A., Bolek M.G.; RT "Cryptic species of hairworm parasites revealed by molecular data and RT crowdsourcing of specimen collections."; RL Mol. Phylogenet. Evol. 82:211-218(2015). 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 CC [Fe(III)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|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|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; KM382278; AIT55310.1; -; 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: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; 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:AIT55310.1}; 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 42..67 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 132..155 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 167..195 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..219 FT /note="COX1" FT /evidence="ECO:0000259|PROSITE:PS50855" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:AIT55310.1" FT NON_TER 219 FT /evidence="ECO:0000313|EMBL:AIT55310.1" SQ SEQUENCE 219 AA; 23739 MW; 028271C2EA959F36 CRC64; ILYFLFGFWA AFLGTALSMI IRVELSHSNS LLKSGSTYNM VITAHALVMI FFAIMPVLVG GFGNWLIPSM LSSPDMAFPR MNNLSFWLLP PSLILLLTSS LTESGCATGW TIYPPLSSLI GHPSPSTDLA ILSLHIAGVS SLLGSMNFIT TIITLRPAGF PMEKLSLFLW SSLITAFLLL LSLPVLAGAL TMLILDRNIN TSFFDPVGGG DPVLFQHLF //