ID   UCRI_CHRVI              Reviewed;         207 AA.
AC   O31214;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   16-JUN-2009, entry version 57.
DE   RecName: Full=Ubiquinol-cytochrome c reductase iron-sulfur subunit;
DE            EC=1.10.2.2;
DE   AltName: Full=Rieske iron-sulfur protein;
DE            Short=RISP;
GN   Name=petA;
OS   Chromatium vinosum (Allochromatium vinosum).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales;
OC   Chromatiaceae; Allochromatium.
OX   NCBI_TaxID=1049;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 17899 / DSM 180 / D;
RX   DOI=10.1023/A:1006052408216;
RA   Chen Y.L., Dincturk H.B., Qin H., Knaff D.B.;
RT   "The pet operon, encoding the prosthetic group-containing subunits of
RT   the cytochrome bc1 complex, of the purple sulfur bacterium Chromatium
RT   vinosum.";
RL   Photosyn. Res. 57:149-158(1998).
CC   -!- FUNCTION: Component of the ubiquinol-cytochrome c reductase
CC       complex (complex III or cytochrome b-c1 complex), which is a
CC       respiratory chain that generates an electrochemical potential
CC       coupled to ATP synthesis.
CC   -!- CATALYTIC ACTIVITY: QH(2) + 2 ferricytochrome c = Q + 2
CC       ferrocytochrome c + 2 H(+).
CC   -!- COFACTOR: Binds 1 2Fe-2S cluster per subunit (By similarity).
CC   -!- SUBUNIT: The main subunits of complex b-c1 are: cytochrome b,
CC       cytochrome c1 and the Rieske protein.
CC   -!- SUBCELLULAR LOCATION: Cell membrane; Single-pass membrane protein
CC       (Potential).
CC   -!- MISCELLANEOUS: The Rieske protein is a high potential 2Fe-2S
CC       protein.
CC   -!- SIMILARITY: Contains 1 Rieske domain.
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DR   EMBL; AF034104; AAB86973.1; -; Genomic_DNA.
DR   HSSP; P13272; 1RIE.
DR   BRENDA; 1.10.2.2; 2799.
DR   GO; GO:0016021; C:integral to membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0009055; F:electron carrier activity; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0008121; F:ubiquinol-cytochrome-c reductase activity; IEA:EC.
DR   GO; GO:0022900; P:electron transport chain; IEA:UniProtKB-KW.
DR   GO; GO:0006810; P:transport; IEA:UniProtKB-KW.
DR   InterPro; IPR017941; Rieske_2Fe-2S.
DR   InterPro; IPR014349; Rieske_Fe-S_prot.
DR   InterPro; IPR019470; Ubiq_cytC_Rdtase_Fe-S_su_TAT.
DR   InterPro; IPR006317; Ubiquinol_cyt_c_Rdtase_Fe-S-su.
DR   Gene3D; G3DSA:2.102.10.10; Rieske_reg; 1.
DR   PANTHER; PTHR10134; Rieske; 1.
DR   Pfam; PF00355; Rieske; 1.
DR   Pfam; PF10399; UCR_Fe-S_N; 1.
DR   TIGRFAMs; TIGR01416; Rieske_proteo; 1.
DR   PROSITE; PS51296; RIESKE; 1.
PE   3: Inferred from homology;
KW   2Fe-2S; Cell membrane; Disulfide bond; Electron transport; Iron;
KW   Iron-sulfur; Membrane; Metal-binding; Oxidoreductase; Transmembrane;
KW   Transport.
FT   CHAIN         1    207       Ubiquinol-cytochrome c reductase iron-
FT                                sulfur subunit.
FT                                /FTId=PRO_0000127760.
FT   TRANSMEM     24     44       Potential.
FT   DOMAIN      100    199       Rieske.
FT   METAL       134    134       Iron-sulfur (2Fe-2S) (By similarity).
FT   METAL       136    136       Iron-sulfur (2Fe-2S); via pros nitrogen
FT                                (By similarity).
FT   METAL       162    162       Iron-sulfur (2Fe-2S) (By similarity).
FT   METAL       165    165       Iron-sulfur (2Fe-2S); via pros nitrogen
FT                                (By similarity).
FT   DISULFID    139    164       By similarity.
SQ   SEQUENCE   207 AA;  22125 MW;  C6886EDF25E981CD CRC64;
     MLASAGGYWP MSAQGVNKMR RRVLVAATSV VGAVGAGYAL VPFVASMNPS ARARAAGAPV
     EADISKLEPG ALLRVKWRGM PVWVVHRSSE MLAALSSNDP KLVDPTSEVP QQPDYCKNPT
     RSIKPEYLVA IGICTHLGCS PTYRPEFGPD DLGSGWKGGF HCPCHGSRFD LAARVFKNVP
     APTNLVIPKH VYLNDTTILI GEDRGSA
//