ID A0A3Q8TN87_9EUCA Unreviewed; 185 AA. AC A0A3Q8TN87; DT 10-APR-2019, integrated into UniProtKB/TrEMBL. DT 10-APR-2019, sequence version 1. DT 29-SEP-2021, entry version 12. 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=COX1 {ECO:0000313|EMBL:AZL49208.1}; OS Planes major. OG Mitochondrion {ECO:0000313|EMBL:AZL49208.1}. OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Crustacea; Multicrustacea; OC Malacostraca; Eumalacostraca; Eucarida; Decapoda; Pleocyemata; Brachyura; OC Eubrachyura; Grapsoidea; Grapsidae; Planes. OX NCBI_TaxID=1581164 {ECO:0000313|EMBL:AZL49208.1}; RN [1] {ECO:0000313|EMBL:AZL49208.1} RP NUCLEOTIDE SEQUENCE. RC STRAIN=RNANA212223CR1 {ECO:0000313|EMBL:AZL49208.1}; RX PubMed=30503417; DOI=10.1016/j.marpolbul.2018.10.015; RA Rech S., Thiel M., Borrell Pichs Y.J., Garcia-Vazquez E.; RT "Travelling light: Fouling biota on macroplastics arriving on beaches of RT remote Rapa Nui (Easter Island) in the South Pacific Subtropical Gyre. ."; RL Mar. Pollut. Bull. 137:119-128(2018). 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; MH536247; AZL49208.1; -; 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:AZL49208.1}; 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 20..47 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 112..135 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 147..174 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..185 FT /note="COX1" FT /evidence="ECO:0000259|PROSITE:PS50855" FT NON_TER 1 FT /evidence="ECO:0000313|EMBL:AZL49208.1" FT NON_TER 185 FT /evidence="ECO:0000313|EMBL:AZL49208.1" SQ SEQUENCE 185 AA; 19934 MW; 1B0D8445D33E281B CRC64; IRAELSQPGS LIGDDQIYNV VVTAHAFVMI FFMVMPIMIG GFGNWLVPLM LGAPDMAFPR MNNMSFWLLP PSLSLLLTSS MVESGVGTGW TVYPPLAAAI AHAGASVDLG IFSLHLAGVS SILGAVNFMT TVINMRSYGM TMDQMPLFVW AVFITAILLL LSLPVLAGAI TMLLTDRNLN TSFFD //