ID R4IQ04_PSEPQ Unreviewed; 516 AA. AC R4IQ04; DT 24-JUL-2013, integrated into UniProtKB/TrEMBL. DT 24-JUL-2013, sequence version 1. DT 29-MAY-2024, entry version 51. 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}; GN Name=COX1 {ECO:0000313|EMBL:AFV57258.1}; OS Pseudofusus parvulus (Sea snail) (Fusinus parvulus). OG Mitochondrion {ECO:0000313|EMBL:AFV57258.1}. OC Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Gastropoda; OC Caenogastropoda; Neogastropoda; Buccinoidea; Fasciolariidae; Pseudofusus. OX NCBI_TaxID=175786 {ECO:0000313|EMBL:AFV57258.1}; RN [1] {ECO:0000313|EMBL:AFV57258.1} RP NUCLEOTIDE SEQUENCE. RX PubMed=23311344; RA Liang H.W., Li Z., Zou G.W.; RT "Complete mitochondrial DNA genome of Leiocassis crassilabris(Siluriformes: RT Bagridae)."; RL Mitochondrial DNA 24:222-224(2013). RN [2] {ECO:0000313|EMBL:AGM51225.1} RP NUCLEOTIDE SEQUENCE. RX PubMed=24512421; DOI=10.3109/19401736.2013.792067; RA Zhou L., Xie Z., Zhang Y.; RT "The complete mitochondrial genome of Leiocassis crassilabris (Teleostei, RT Siluriformes: Bagridae)."; RL Mitochondrial DNA 25:183-184(2014). 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|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: Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi- CC pass membrane protein {ECO:0000256|ARBA:ARBA00004141}. Mitochondrion CC inner membrane {ECO:0000256|RuleBase:RU000369}; Multi-pass membrane CC protein {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; JX867257; AFV57258.1; -; Genomic_DNA. DR EMBL; KC768227; AGM51225.1; -; Genomic_DNA. DR RefSeq; YP_008080851.1; NC_021394.1. DR AlphaFoldDB; R4IQ04; -. DR GeneID; 15822347; -. DR CTD; 4512; -. 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 CDD; cd01663; Cyt_c_Oxidase_I; 1. 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 InterPro; IPR023615; Cyt_c_Oxase_su1_BS. DR InterPro; IPR033944; Cyt_c_oxase_su1_dom. 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. DR PROSITE; PS00077; COX1_CUB; 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:AFV57258.1}; KW Mitochondrion inner membrane {ECO:0000256|RuleBase:RU000369}; KW Respiratory chain {ECO:0000256|RuleBase:RU000369}; KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, KW ECO:0000256|RuleBase:RU000369}; KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, KW ECO:0000256|SAM:Phobius}; Transport {ECO:0000256|RuleBase:RU000369}. FT TRANSMEM 15..37 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 57..83 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 104..128 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 148..171 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 183..210 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 243..261 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 268..291 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 303..326 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 338..359 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 379..400 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 412..430 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 450..473 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT DOMAIN 1..515 FT /note="Cytochrome oxidase subunit I profile" FT /evidence="ECO:0000259|PROSITE:PS50855" SQ SEQUENCE 516 AA; 57033 MW; 310BAF5BC3EC7904 CRC64; MTITRWFFST NHKDIGTLYL VFGAWAGMVG TALSLLIRAE LAQPGALLGD DQIYNVIVTA HAFIMIFFMV MPIMIGGFGN WLVPLMIGAP DMAFPRMNNM SFWLLPPSFL LLLASSGVEA GAGTGWTVYP PLAGNLAHAG ASVDLTIFSL HLAGVSSILG AINFITTIIN MKPPAISQYQ TPLFVWAVLI TAVLLLLSLP VLAAGITMLL TDRNLNTTFF DPAGGGDPIL YQHLFWFFGH PEVYILILPG FGMISHIVAY YSGKKEPFGY MGMVWAMMAI GLLGFIVWAH HMFTVGMDVD TRAYFTSATM IIAIPTGVKV FSWLATLHGG SIKWETPLLW ALGFIFLFTV GGLTGIVLAN SSLDIVLHDT YYVVAHFHYV LSMGAVFAIM GAFVHWFPLF TGYTMHDTWT KIHFGTMFVG VNLTFFPQHF LGLAGMPRRY SDYPDAYSLW NIISSIGSMV SLVAVVMFLY ILWEAFTAKR EVMSVELTST NVEWLHGCPP PYHTFEEPAF VQVRTN //