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Database: UniProt
Entry: A0A0F7FQQ3_9ACTN
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ID   A0A0F7FQQ3_9ACTN        Unreviewed;       269 AA.
AC   A0A0F7FQQ3;
DT   22-JUL-2015, integrated into UniProtKB/TrEMBL.
DT   22-JUL-2015, sequence version 1.
DT   24-JAN-2024, entry version 37.
DE   RecName: Full=Cytochrome bc1 complex cytochrome c subunit {ECO:0000256|ARBA:ARBA00017819, ECO:0000256|PIRNR:PIRNR000007};
DE            EC=7.1.1.8 {ECO:0000256|ARBA:ARBA00012951, ECO:0000256|PIRNR:PIRNR000007};
GN   ORFNames=SXIM_10800 {ECO:0000313|EMBL:AKG42464.1};
OS   Streptomyces xiamenensis.
OC   Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC   Streptomycetaceae; Streptomyces.
OX   NCBI_TaxID=408015 {ECO:0000313|EMBL:AKG42464.1, ECO:0000313|Proteomes:UP000034034};
RN   [1] {ECO:0000313|Proteomes:UP000034034}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MCCC 1A01550 {ECO:0000313|Proteomes:UP000034034};
RA   Xu J.;
RT   "Complete genome sequence of a mangrove-derived Streptomyces xiamenensis.";
RL   Submitted (FEB-2015) to the EMBL/GenBank/DDBJ databases.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a quinol + 2 Fe(III)-[cytochrome c](out) = a quinone + 2
CC         Fe(II)-[cytochrome c](out) + 2 H(+)(out); Xref=Rhea:RHEA:11484,
CC         Rhea:RHEA-COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:24646, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034,
CC         ChEBI:CHEBI:132124; EC=7.1.1.8;
CC         Evidence={ECO:0000256|ARBA:ARBA00029351,
CC         ECO:0000256|PIRNR:PIRNR000007};
CC   -!- SUBUNIT: The cytochrome bc1 complex is composed of a cytochrome b
CC       (QcrB), the Rieske iron-sulfur protein (QcrA) and a diheme cytochrome c
CC       (QcrC) subunit. {ECO:0000256|PIRNR:PIRNR000007}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|ARBA:ARBA00004651,
CC       ECO:0000256|PIRNR:PIRNR000007}; Multi-pass membrane protein
CC       {ECO:0000256|ARBA:ARBA00004651, ECO:0000256|PIRNR:PIRNR000007}.
CC       Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi-pass membrane protein
CC       {ECO:0000256|ARBA:ARBA00004141}.
CC   -!- PTM: Binds 2 heme c groups covalently per subunit.
CC       {ECO:0000256|PIRSR:PIRSR000007-50}.
CC   -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC       feature annotation. {ECO:0000256|PIRNR:PIRNR000007}.
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DR   EMBL; CP009922; AKG42464.1; -; Genomic_DNA.
DR   RefSeq; WP_030734511.1; NZ_CP009922.3.
DR   AlphaFoldDB; A0A0F7FQQ3; -.
DR   STRING; 408015.SXIM_10800; -.
DR   KEGG; sxi:SXIM_10800; -.
DR   PATRIC; fig|408015.6.peg.1111; -.
DR   HOGENOM; CLU_086567_0_0_11; -.
DR   Proteomes; UP000034034; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0070469; C:respirasome; IEA:UniProtKB-UniRule.
DR   GO; GO:0020037; F:heme binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016829; F:lyase activity; IEA:UniProtKB-KW.
DR   GO; GO:0008121; F:ubiquinol-cytochrome-c reductase activity; IEA:UniProtKB-EC.
DR   Gene3D; 1.10.760.10; Cytochrome c-like domain; 2.
DR   InterPro; IPR009152; bc1_cytC-su.
DR   InterPro; IPR009056; Cyt_c-like_dom.
DR   InterPro; IPR036909; Cyt_c-like_dom_sf.
DR   PANTHER; PTHR33751; CBB3-TYPE CYTOCHROME C OXIDASE SUBUNIT FIXP; 1.
DR   PANTHER; PTHR33751:SF9; CYTOCHROME C4; 1.
DR   Pfam; PF00034; Cytochrom_C; 1.
DR   Pfam; PF13442; Cytochrome_CBB3; 1.
DR   PIRSF; PIRSF000007; Ubiq_cycred_cyc; 1.
DR   SUPFAM; SSF46626; Cytochrome c; 2.
DR   PROSITE; PS51007; CYTC; 2.
PE   4: Predicted;
KW   Cell membrane {ECO:0000256|PIRNR:PIRNR000007};
KW   Electron transport {ECO:0000256|PIRNR:PIRNR000007};
KW   Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|PIRNR:PIRNR000007};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PIRNR:PIRNR000007};
KW   Lyase {ECO:0000313|EMBL:AKG42464.1};
KW   Membrane {ECO:0000256|PIRNR:PIRNR000007};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW   ECO:0000256|PIRNR:PIRNR000007};
KW   Respiratory chain {ECO:0000256|PIRNR:PIRNR000007};
KW   Translocase {ECO:0000256|ARBA:ARBA00022967, ECO:0000256|PIRNR:PIRNR000007};
KW   Transmembrane {ECO:0000256|PIRNR:PIRNR000007};
KW   Transmembrane helix {ECO:0000256|PIRNR:PIRNR000007};
KW   Transport {ECO:0000256|PIRNR:PIRNR000007}.
FT   TRANSMEM        242..261
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|PIRNR:PIRNR000007"
FT   DOMAIN          47..126
FT                   /note="Cytochrome c"
FT                   /evidence="ECO:0000259|PROSITE:PS51007"
FT   DOMAIN          142..220
FT                   /note="Cytochrome c"
FT                   /evidence="ECO:0000259|PROSITE:PS51007"
FT   BINDING         60
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="1"
FT                   /note="covalent"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000007-50"
FT   BINDING         63
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="1"
FT                   /note="covalent"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000007-50"
FT   BINDING         64
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="1"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000007-51"
FT   BINDING         155
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="2"
FT                   /note="covalent"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000007-50"
FT   BINDING         158
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="2"
FT                   /note="covalent"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000007-50"
FT   BINDING         159
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="2"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR000007-51"
SQ   SEQUENCE   269 AA;  27745 MW;  26B932F44A9E307F CRC64;
     MKKLSARRRH PLAALVVLIF ALAVTGGLYA VLAPSGEAQA EETAQTLAIE EGKALYSVGC
     SSCHGNEGQG GTGGPSLVGV GAASVDFQVG TGRMPMAQPG PQAERKPTVY NQAEIDQLAA
     YIASLGPGPA VPESDAYDPA QGDPARGGEL FRTNCSQCHN YTGQGGALTH GKFAPNLADV
     NPRHLYEAML TGPQNMPSFP DGVLPEDAKR DIIAWLDATN TSESPNPGGL SLGGYGPVGE
     GFFAWTIGIG MLIAVAVWIA ARSAKAKKS
//
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