ID   COX1A_STRAW             Reviewed;         579 AA.
AC   Q82AK9;
DT   26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   27-MAR-2024, entry version 131.
DE   RecName: Full=Probable cytochrome c oxidase subunit 1-alpha;
DE            EC=7.1.1.9;
DE   AltName: Full=Cytochrome aa3 subunit 1-alpha;
DE   AltName: Full=Cytochrome c oxidase polypeptide I-alpha;
GN   Name=ctaD1; OrderedLocusNames=SAV_6048;
OS   Streptomyces avermitilis (strain ATCC 31267 / DSM 46492 / JCM 5070 / NBRC
OS   14893 / NCIMB 12804 / NRRL 8165 / MA-4680).
OC   Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC   Streptomycetaceae; Streptomyces.
OX   NCBI_TaxID=227882;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 31267 / DSM 46492 / JCM 5070 / NBRC 14893 / NCIMB 12804 /
RC   NRRL 8165 / MA-4680;
RX   PubMed=11572948; DOI=10.1073/pnas.211433198;
RA   Omura S., Ikeda H., Ishikawa J., Hanamoto A., Takahashi C., Shinose M.,
RA   Takahashi Y., Horikawa H., Nakazawa H., Osonoe T., Kikuchi H., Shiba T.,
RA   Sakaki Y., Hattori M.;
RT   "Genome sequence of an industrial microorganism Streptomyces avermitilis:
RT   deducing the ability of producing secondary metabolites.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:12215-12220(2001).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 31267 / DSM 46492 / JCM 5070 / NBRC 14893 / NCIMB 12804 /
RC   NRRL 8165 / MA-4680;
RX   PubMed=12692562; DOI=10.1038/nbt820;
RA   Ikeda H., Ishikawa J., Hanamoto A., Shinose M., Kikuchi H., Shiba T.,
RA   Sakaki Y., Hattori M., Omura S.;
RT   "Complete genome sequence and comparative analysis of the industrial
RT   microorganism Streptomyces avermitilis.";
RL   Nat. Biotechnol. 21:526-531(2003).
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 (By
CC       similarity). {ECO:0000250}.
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; Evidence={ECO:0000250};
CC       Note=Binds 1 copper B ion per subunit. {ECO:0000250};
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000250};
CC       Note=Binds 2 heme groups per subunit. {ECO:0000250};
CC   -!- PATHWAY: Energy metabolism; oxidative phosphorylation.
CC   -!- SUBUNIT: Associates with subunits II, III and IV to form cytochrome c
CC       oxidase. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250}; Multi-pass membrane
CC       protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the heme-copper respiratory oxidase family.
CC       {ECO:0000305}.
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DR   EMBL; BA000030; BAC73759.1; -; Genomic_DNA.
DR   RefSeq; WP_010987449.1; NZ_JZJK01000089.1.
DR   AlphaFoldDB; Q82AK9; -.
DR   SMR; Q82AK9; -.
DR   KEGG; sma:SAVERM_6048; -.
DR   eggNOG; COG0843; Bacteria.
DR   HOGENOM; CLU_011899_7_3_11; -.
DR   OrthoDB; 9803294at2; -.
DR   UniPathway; UPA00705; -.
DR   Proteomes; UP000000428; Chromosome.
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   CDD; cd01662; Ubiquinol_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; IPR014241; Cyt_c_oxidase_su1_bac.
DR   NCBIfam; TIGR02891; CtaD_CoxA; 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.
DR   PROSITE; PS00077; COX1_CUB; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Copper; Electron transport; Heme; Iron; Membrane;
KW   Metal-binding; Reference proteome; Respiratory chain; Translocase;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..579
FT                   /note="Probable cytochrome c oxidase subunit 1-alpha"
FT                   /id="PRO_0000183450"
FT   TRANSMEM        44..64
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        93..113
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        125..145
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        174..194
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        217..237
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        262..282
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        295..315
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        319..339
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        363..383
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        397..417
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        437..457
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        480..500
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   REGION          1..21
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         90
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:0000250"
FT   BINDING         268
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         272
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         317
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         318
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         401
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:0000250"
FT   BINDING         403
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:0000250"
FT   CROSSLNK        268..272
FT                   /note="1'-histidyl-3'-tyrosine (His-Tyr)"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   579 AA;  63950 MW;  848C1E2D09B3589E CRC64;
     MSILNEPQGA AAAEDSYENE LPVRRKQPGN VVVKWLTTTD HKTIGTLYLV TSFAFFCIGG
     VMALLMRAEL ARPGMQIMSS EQFNQAFTMH GTIMLLMFAT PLFAGFANWI MPLQIGAPDV
     AFPRLNMFAY WLYLFGSLIA VGGFLTPQGA ADFGWFAYSP LSDAVRSPGI GADMWIMGLA
     FSGFGTILGS VNFITTIICM RAPGMTMFRM PIFVWNVLLT GVLVLLAFPV LAAALFALEA
     DRKFGAHVFD AANGGALLWQ HLFWFFGHPE VYIIALPFFG IISEVIPVFS RKPMFGYMGL
     IGATIAIAGL SVTVWAHHMY VTGGVLLPFF SFMTFLIAVP TGVKFFNWIG TMWKGSLSFE
     TPMLWATGFL ITFTFGGLTG VILASPPMDF HVSDSYFVVA HFHYVVFGTV VFAMFSGFHY
     WWPKFTGKML DERLGKITFW TLFVGFHGTF LIQHWLGAEG MPRRYADYLA ADGFTALNTI
     STICSFLLGL SILPFLYNVW KTAKYGKPVG VDDPWGYGRS LEWATSCPPP RHNFLTLPRI
     RSESPAFDLH HPEIAALDQL ENAGHGEKAA VAGGKEAGK
//