ID   UCRI_CHLLT              Reviewed;         181 AA.
AC   Q46136;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   16-JUN-2009, entry version 57.
DE   RecName: Full=Cytochrome b6-f complex iron-sulfur subunit;
DE            EC=1.10.99.1;
DE   AltName: Full=Rieske iron-sulfur protein;
DE            Short=RISP;
DE            Short=ISP;
DE   AltName: Full=Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein;
GN   Name=petC;
OS   Chlorobium limicola f.sp. thiosulfatophilum.
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobaculum.
OX   NCBI_TaxID=115852;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF 2-35.
RA   Schuetz M., Zirngibl S., le Coutre J., Buettner M., Xie D.-L.,
RA   Nelson N., Deutzmann R., Hauska G.;
RT   "A transcription unit for the Rieske FeS-protein and cytochrome b in
RT   Chlorobium limicola.";
RL   Photosyn. Res. 39:163-174(1994).
CC   -!- FUNCTION: Component of the green S-bacteria bc-complex which
CC       consists of the Rieske protein and cytochrome b subunit and which
CC       appears to lack a cytochrome c1-equivalent. This complex has a
CC       comparatively low redox potential.
CC   -!- CATALYTIC ACTIVITY: Plastoquinol-1 + 2 oxidized plastocyanin =
CC       plastoquinone + 2 reduced plastocyanin.
CC   -!- COFACTOR: Binds 1 2Fe-2S cluster per subunit (By similarity).
CC   -!- SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein
CC       (Potential).
CC   -!- MISCELLANEOUS: The Rieske protein is a high potential 2Fe-2S
CC       protein.
CC   -!- SIMILARITY: Contains 1 Rieske domain.
CC   -----------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution-NoDerivs License
CC   -----------------------------------------------------------------------
DR   EMBL; X73628; CAA52007.1; -; Genomic_DNA.
DR   PIR; S38460; S38460.
DR   HSSP; P08980; 1RFS.
DR   GO; GO:0016021; C:integral to membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0042651; C:thylakoid membrane; IEA:InterPro.
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:0009496; F:plastoquinol-plastocyanin 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; IPR014909; Cyt_b6-f_cplx_Fe-S_su.
DR   InterPro; IPR017941; Rieske_2Fe-2S.
DR   InterPro; IPR014349; Rieske_Fe-S_prot.
DR   Gene3D; G3DSA:2.102.10.10; Rieske_reg; 1.
DR   PANTHER; PTHR10134; Rieske; 1.
DR   Pfam; PF08802; CytB6-F_Fe-S; 1.
DR   Pfam; PF00355; Rieske; 1.
DR   PROSITE; PS51296; RIESKE; 1.
PE   1: Evidence at protein level;
KW   2Fe-2S; Cell membrane; Direct protein sequencing; Disulfide bond;
KW   Electron transport; Iron; Iron-sulfur; Membrane; Metal-binding;
KW   Oxidoreductase; Transmembrane; Transport.
FT   INIT_MET      1      1       Removed.
FT   CHAIN         2    181       Cytochrome b6-f complex iron-sulfur
FT                                subunit.
FT                                /FTId=PRO_0000127772.
FT   TRANSMEM     53     73       Potential.
FT   TRANSMEM    114    134       Potential.
FT   DOMAIN       85    178       Rieske.
FT   METAL       124    124       Iron-sulfur (2Fe-2S) (By similarity).
FT   METAL       126    126       Iron-sulfur (2Fe-2S); via pros nitrogen
FT                                (By similarity).
FT   METAL       142    142       Iron-sulfur (2Fe-2S) (By similarity).
FT   METAL       145    145       Iron-sulfur (2Fe-2S); via pros nitrogen
FT                                (By similarity).
FT   DISULFID    129    144       By similarity.
SQ   SEQUENCE   181 AA;  19039 MW;  BD897E2DD1B8D3C6 CRC64;
     MAQTGNFKSP ARMSSLGQGA APASSGAVTG GKPREGGLKG VDFERRGFLH KIVGGVGAVV
     AVSTLYPVVK YIIPPARKIK NVDELTVGKA SEVPDGKSKI FQFNEDKVIV VNKGGALTAV
     SAVCTHLGCL VNWVDADNQY FCPCHGAKYK LTGEIISGPQ PLPLKQYKAR IEGDSIIISK
     A
//