ID   UCRIA_PEA               Reviewed;         230 AA.
AC   P26291;
DT   01-MAY-1992, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1992, sequence version 1.
DT   25-NOV-2008, entry version 61.
DE   RecName: Full=Cytochrome b6-f complex iron-sulfur subunit, chloroplastic;
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;
DE   Flags: Precursor;
GN   Name=petC;
OS   Pisum sativum (Garden pea).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliophyta; eudicotyledons; core eudicotyledons;
OC   rosids; eurosids I; Fabales; Fabaceae; Papilionoideae; Fabeae; Pisum.
OX   NCBI_TaxID=3888;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   MEDLINE=93043048; PubMed=1421160; DOI=10.1007/BF00040617;
RA   Salter A.H., Newman B.J., Napier J.A., Gray J.C.;
RT   "Import of the precursor of the chloroplast Rieske iron-sulphur
RT   protein by pea chloroplasts.";
RL   Plant Mol. Biol. 20:569-574(1992).
CC   -!- FUNCTION: Component of the cytochrome b6-f complex, which mediates
CC       electron transfer between photosystem II (PSII) and photosystem I
CC       (PSI), cyclic electron flow around PSI, and state transitions (By
CC       similarity).
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   -!- SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are
CC       cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f
CC       and the Rieske protein, while the 4 small subunits are petG, petL,
CC       petM and petN. The complex functions as a dimer (By similarity).
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane;
CC       Single-pass membrane protein (By similarity). Note=The
CC       transmembrane helix obliquely spans the membrane in one monomer,
CC       and its extrinsic C-terminal domain is part of the other monomer
CC       (By similarity).
CC   -!- MISCELLANEOUS: This protein is 1 of 2 subunits of the cytochrome
CC       b6-f complex that are encoded in the nucleus.
CC   -!- MISCELLANEOUS: The Rieske iron-sulfur protein is a high potential
CC       2Fe-2S protein.
CC   -!- SIMILARITY: Contains 1 Rieske domain.
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DR   EMBL; X63605; CAA45151.1; -; mRNA.
DR   PIR; S26199; S26199.
DR   HSSP; P08980; 1RFS.
DR   SMR; P26291; 103-230.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-KW.
DR   GO; GO:0016021; C:integral to membrane; IEA:UniProtKB-KW.
DR   GO; GO:0009579; C:thylakoid; IEA:UniProtKB-KW.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:InterPro.
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:0008121; F:ubiquinol-cytochrome-c reductase activity; IEA:InterPro.
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_Fe-S_su.
DR   InterPro; IPR014349; Rieske.
DR   InterPro; IPR005805; Rieske_C.
DR   InterPro; IPR005806; Rieske_reg.
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   PRINTS; PR00162; RIESKE.
DR   PROSITE; PS51296; RIESKE; 1.
PE   2: Evidence at transcript level;
KW   2Fe-2S; Chloroplast; Electron transport; Iron; Iron-sulfur; Membrane;
KW   Metal-binding; Oxidoreductase; Plastid; Thylakoid; Transit peptide;
KW   Transmembrane; Transport.
FT   TRANSIT       1     50       Chloroplast (By similarity).
FT   CHAIN        51    230       Cytochrome b6-f complex iron-sulfur
FT                                subunit, chloroplastic.
FT                                /FTId=PRO_0000030691.
FT   TRANSMEM     72     92       Potential.
FT   DOMAIN      115    213       Rieske.
FT   METAL       157    157       Iron-sulfur (2Fe-2S) (By similarity).
FT   METAL       159    159       Iron-sulfur (2Fe-2S); via pros nitrogen
FT                                (By similarity).
FT   METAL       175    175       Iron-sulfur (2Fe-2S) (By similarity).
FT   METAL       178    178       Iron-sulfur (2Fe-2S); via pros nitrogen
FT                                (By similarity).
FT   DISULFID    162    177       By similarity.
SQ   SEQUENCE   230 AA;  24243 MW;  A60E42BC68048091 CRC64;
     MSSTTLSPTT PSQLCSGKSG ISCPSIALLV KPTRTQMTGR GNKGMKITCQ ATSIPADRVP
     DMSKRKTLNL LLLGALSLPT AGMLVPYGSF LVPPGSGSST GGTVAKDAVG NDVVATEWLK
     THAPGDRTLT QGLKGDPTYL VVEKDRTLAT FAINAVCTHL GCVVPFNQAE NKFICPCHGS
     QYNDQGRVVR GPAPLSLALA HCDVGVEDGK VVFVPWVETD FRTGDAPWWS
//