ID   COX1B_STRCO             Reviewed;         573 AA.
AC   Q9K451;
DT   26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   27-MAR-2024, entry version 131.
DE   RecName: Full=Putative cytochrome c oxidase subunit 1-beta;
DE            EC=7.1.1.9;
DE   AltName: Full=Cytochrome aa3 subunit 1-beta;
DE   AltName: Full=Cytochrome c oxidase polypeptide I-beta;
GN   Name=ctaD2; OrderedLocusNames=SCO7234; ORFNames=SC2H12.33;
OS   Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145).
OC   Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC   Streptomycetaceae; Streptomyces; Streptomyces albidoflavus group.
OX   NCBI_TaxID=100226;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-471 / A3(2) / M145;
RX   PubMed=12000953; DOI=10.1038/417141a;
RA   Bentley S.D., Chater K.F., Cerdeno-Tarraga A.-M., Challis G.L.,
RA   Thomson N.R., James K.D., Harris D.E., Quail M.A., Kieser H., Harper D.,
RA   Bateman A., Brown S., Chandra G., Chen C.W., Collins M., Cronin A.,
RA   Fraser A., Goble A., Hidalgo J., Hornsby T., Howarth S., Huang C.-H.,
RA   Kieser T., Larke L., Murphy L.D., Oliver K., O'Neil S., Rabbinowitsch E.,
RA   Rajandream M.A., Rutherford K.M., Rutter S., Seeger K., Saunders D.,
RA   Sharp S., Squares R., Squares S., Taylor K., Warren T., Wietzorrek A.,
RA   Woodward J.R., Barrell B.G., Parkhill J., Hopwood D.A.;
RT   "Complete genome sequence of the model actinomycete Streptomyces coelicolor
RT   A3(2).";
RL   Nature 417:141-147(2002).
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; AL939130; CAB94657.1; -; Genomic_DNA.
DR   RefSeq; NP_631290.1; NC_003888.3.
DR   RefSeq; WP_003971911.1; NZ_VNID01000019.1.
DR   AlphaFoldDB; Q9K451; -.
DR   SMR; Q9K451; -.
DR   STRING; 100226.gene:17764894; -.
DR   PaxDb; 100226-SCO7234; -.
DR   PATRIC; fig|100226.15.peg.7334; -.
DR   eggNOG; COG0843; Bacteria.
DR   HOGENOM; CLU_011899_7_1_11; -.
DR   InParanoid; Q9K451; -.
DR   OrthoDB; 9803294at2; -.
DR   PhylomeDB; Q9K451; -.
DR   UniPathway; UPA00705; -.
DR   Proteomes; UP000001973; 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:0009060; P:aerobic respiration; IBA:GO_Central.
DR   GO; GO:0015990; P:electron transport coupled proton transport; IBA:GO_Central.
DR   GO; GO:0006119; P:oxidative phosphorylation; IEA:UniProtKB-UniPathway.
DR   GO; GO:0022904; P:respiratory electron transport chain; IBA:GO_Central.
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..573
FT                   /note="Putative cytochrome c oxidase subunit 1-beta"
FT                   /id="PRO_0000183453"
FT   TRANSMEM        53..73
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        103..123
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        141..161
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        188..208
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        227..247
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        272..292
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        304..324
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        329..349
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        373..393
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        412..432
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        447..467
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        490..510
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   BINDING         100
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         278
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         282
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         327
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         328
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_label="B"
FT                   /evidence="ECO:0000250"
FT   BINDING         411
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         413
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        278..282
FT                   /note="1'-histidyl-3'-tyrosine (His-Tyr)"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   573 AA;  64041 MW;  1FC5DC79FD6DA220 CRC64;
     MVVGLSPRRL GTLRRMAVDR RTKSPRRTPA RQRTNRTLGR ALVRWATTTD HKVIGHLYLA
     TSFGFFLLGG VLAMLMRSEL ARPGLQLFSN EQYNQLFTVH GTIMMLLFAT PLFAGFTNVI
     MPLQIGAPDL AFPRLNALSY WMYLFGGLMV VSGFLTPGGA ASFGWFAYAP LNSATFSPGP
     GGDLWTMGLV VSGVSTTLSA VNFISTIICL RAPGMTMFRM PIFTWNILFT SILVLPAFPV
     LTAALLMLEA DRKFGAHVFD AANGGALLWQ HLFWFFGHPE VYIVALPFFG IVTEIIPVFS
     RKPIFGYVSL VGATIAITFL SAVVWAHHMF ATGAVLLPFF SLMSFLIAVP TGVKFFNWIG
     TMIRGSLSFE TPMLWACGFL VTFLLGGMSG VLIASPPLDF HLTDSYFIVA HLHYVLFGTV
     VFAMFAGFYF WWPKFTGKLL DERLGKIHFW TLFVGFQTTF LVQHWLGEQG MPRRYADYLA
     ADGFTTLNTI SSIGAFLLGL STLPFLYNVW RTHQYGEKVG RDDPWGYGRS LEWATSSPPP
     RHNFTSLPRI RSESPAFDLH HPDVTRHDQR HVQ
//