COX1_THEVL
ID COX1_THEVL Reviewed; 552 AA.
AC P50676;
DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1996, sequence version 1.
DT 03-AUG-2022, entry version 109.
DE RecName: Full=Cytochrome c oxidase subunit 1;
DE EC=7.1.1.9;
DE AltName: Full=Cytochrome aa3 subunit 1;
DE AltName: Full=Cytochrome c oxidase polypeptide I;
DE AltName: Full=Oxidase aa(3) subunit 1;
GN Name=ctaD;
OS Thermostichus vulcanus (Synechococcus vulcanus).
OC Bacteria; Cyanobacteria; Thermostichales; Thermostichaceae; Thermostichus.
OX NCBI_TaxID=32053;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=8399373; DOI=10.1016/0005-2728(93)90012-5;
RA Sone N., Tano H., Ishizuka M.;
RT "The genes in the thermophilic cyanobacterium Synechococcus vulcanus
RT encoding cytochrome-c oxidase.";
RL Biochim. Biophys. Acta 1183:130-138(1993).
CC -!- FUNCTION: Cytochrome c oxidase is the component of the respiratory
CC chain that catalyzes the reduction of oxygen to water. Subunits 1-3
CC form the functional core of the enzyme complex. CO I is the catalytic
CC subunit of the enzyme. Electrons originating in cytochrome c are
CC transferred via the copper A center of subunit 2 and heme A of subunit
CC 1 to the bimetallic center formed by heme A3 and copper B.
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 -!- COFACTOR:
CC Name=Cu(2+); Xref=ChEBI:CHEBI:29036;
CC Note=Binds 1 copper B ion per subunit.;
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413;
CC Note=Binds 2 heme groups per subunit.;
CC -!- PATHWAY: Energy metabolism; oxidative phosphorylation.
CC -!- SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein.
CC -!- SIMILARITY: Belongs to the heme-copper respiratory oxidase family.
CC {ECO:0000305}.
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DR EMBL; D16254; BAA41041.1; -; Genomic_DNA.
DR AlphaFoldDB; P50676; -.
DR SMR; P50676; -.
DR PRIDE; P50676; -.
DR UniPathway; UPA00705; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma 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:0015990; P:electron transport coupled proton transport; 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 InterPro; IPR023615; Cyt_c_Oxase_su1_BS.
DR InterPro; IPR014241; Cyt_c_oxidase_su1_bac.
DR PANTHER; PTHR10422; PTHR10422; 1.
DR Pfam; PF00115; COX1; 1.
DR PRINTS; PR01165; CYCOXIDASEI.
DR SUPFAM; SSF81442; SSF81442; 1.
DR TIGRFAMs; TIGR02891; CtaD_CoxA; 1.
DR PROSITE; PS50855; COX1; 1.
DR PROSITE; PS00077; COX1_CUB; 1.
PE 3: Inferred from homology;
KW Cell membrane; Copper; Electron transport; Heme; Iron; Membrane;
KW Metal-binding; Respiratory chain; Translocase; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..552
FT /note="Cytochrome c oxidase subunit 1"
FT /id="PRO_0000183460"
FT TRANSMEM 35..55
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 85..105
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 120..140
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 164..184
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 211..231
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 252..272
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 284..304
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 321..341
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 355..375
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 390..410
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 426..446
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 470..490
FT /note="Helical"
FT /evidence="ECO:0000255"
FT BINDING 82
FT /ligand="Fe(II)-heme a"
FT /ligand_id="ChEBI:CHEBI:61715"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000305"
FT BINDING 258
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="B"
FT /evidence="ECO:0000305"
FT BINDING 262
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="B"
FT /evidence="ECO:0000305"
FT BINDING 307
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="B"
FT /evidence="ECO:0000305"
FT BINDING 308
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="B"
FT /evidence="ECO:0000305"
FT BINDING 393
FT /ligand="heme a3"
FT /ligand_id="ChEBI:CHEBI:83282"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000305"
FT BINDING 395
FT /ligand="Fe(II)-heme a"
FT /ligand_id="ChEBI:CHEBI:61715"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000305"
FT CROSSLNK 258..262
FT /note="1'-histidyl-3'-tyrosine (His-Tyr)"
FT /evidence="ECO:0000250"
SQ SEQUENCE 552 AA; 61521 MW; EC6FDF34497CD061 CRC64;
MAQAQLPLDT PLSLPEHPKA WKWYDYFTFN VDHKVIGIQY LVTAFIFYLI GGLMAVAMRT
ELATADSDFL DPNLYNAFLT NHGTIMIFLW VVPAAIGGFG NYLVPLMIGA RDMAFPRLNA
LAFWLNPPAG ALLLASFLFG GAQAGWTSYP PLSTITATTA QSMWILAIIL VGTSSILGSV
NFIVTIWKMK VPSMRWNQLP LFCWAMLATS LLALVSTPVL AAGLILLLFD INFGTSFYKP
DAGGNVVIYQ HLFWFYSHPA VYLMILPIFG IMSEVIPVHA RKPIFGYQAI AYSSLAICCV
GLFVWVHHMF TSGTPPWMRM FFTISTLIVA VPTGVKIFSW VATLWGGKIR LNSAMLFAIG
LMSMFVLGGL SGVTLGTAPV DIHVHDTYYV VAHFHYVLFG GSVFGLYAGI YHWFPKMTGR
LLDERLGILH FVLTLIGTNW TFLPMHELGL KGMPRRVAMY DPQFEPVNLI CTIGAFVLAF
SIIPFLINII WSWNKGKIAG DNPWGGLTLE WTTSSPPLIE NWEVLPVVTK GPYDYGIERR
QESTDEDHDE QE
