UCRI_GLOVI
ID UCRI_GLOVI Reviewed; 186 AA.
AC Q7NCE1;
DT 05-JUL-2005, integrated into UniProtKB/Swiss-Prot.
DT 15-DEC-2003, sequence version 1.
DT 03-AUG-2022, entry version 120.
DE RecName: Full=Cytochrome b6-f complex iron-sulfur subunit {ECO:0000255|HAMAP-Rule:MF_01335};
DE EC=7.1.1.6 {ECO:0000255|HAMAP-Rule:MF_01335};
DE AltName: Full=Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein {ECO:0000255|HAMAP-Rule:MF_01335};
DE Short=ISP {ECO:0000255|HAMAP-Rule:MF_01335};
DE Short=RISP {ECO:0000255|HAMAP-Rule:MF_01335};
DE AltName: Full=Rieske iron-sulfur protein {ECO:0000255|HAMAP-Rule:MF_01335};
GN Name=petC {ECO:0000255|HAMAP-Rule:MF_01335}; OrderedLocusNames=glr3038;
OS Gloeobacter violaceus (strain ATCC 29082 / PCC 7421).
OC Bacteria; Cyanobacteria; Gloeobacteria; Gloeobacterales; Gloeobacteraceae;
OC Gloeobacter.
OX NCBI_TaxID=251221;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29082 / PCC 7421;
RX PubMed=14621292; DOI=10.1093/dnares/10.4.137;
RA Nakamura Y., Kaneko T., Sato S., Mimuro M., Miyashita H., Tsuchiya T.,
RA Sasamoto S., Watanabe A., Kawashima K., Kishida Y., Kiyokawa C., Kohara M.,
RA Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Takeuchi C., Yamada M.,
RA Tabata S.;
RT "Complete genome structure of Gloeobacter violaceus PCC 7421, a
RT cyanobacterium that lacks thylakoids.";
RL DNA Res. 10:137-145(2003).
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.
CC {ECO:0000255|HAMAP-Rule:MF_01335}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a plastoquinol + 2 H(+)(in) + 2 oxidized [plastocyanin] = a
CC plastoquinone + 4 H(+)(out) + 2 reduced [plastocyanin];
CC Xref=Rhea:RHEA:22148, Rhea:RHEA-COMP:9561, Rhea:RHEA-COMP:9562,
CC Rhea:RHEA-COMP:10039, Rhea:RHEA-COMP:10040, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:17757, ChEBI:CHEBI:29036, ChEBI:CHEBI:49552,
CC ChEBI:CHEBI:62192; EC=7.1.1.6; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01335};
CC -!- COFACTOR:
CC Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01335};
CC Note=Binds 1 [2Fe-2S] cluster per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_01335};
CC -!- SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are
CC cytochrome b6, subunit IV (17 kDa polypeptide, PetD), cytochrome f and
CC the Rieske protein, while the 4 small subunits are PetG, PetL, PetM and
CC PetN. The complex functions as a dimer. {ECO:0000255|HAMAP-
CC Rule:MF_01335}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_01335}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_01335}. Note=The transmembrane helix obliquely spans the
CC membrane in one monomer, and its extrinsic C-terminal domain is part of
CC the other monomer. {ECO:0000255|HAMAP-Rule:MF_01335}.
CC -!- MISCELLANEOUS: The Rieske iron-sulfur protein is a high potential 2Fe-
CC 2S protein.
CC -!- SIMILARITY: Belongs to the Rieske iron-sulfur protein family.
CC {ECO:0000255|HAMAP-Rule:MF_01335}.
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DR EMBL; BA000045; BAC90979.1; -; Genomic_DNA.
DR RefSeq; NP_925984.1; NC_005125.1.
DR RefSeq; WP_011143031.1; NC_005125.1.
DR AlphaFoldDB; Q7NCE1; -.
DR SMR; Q7NCE1; -.
DR STRING; 251221.35213608; -.
DR EnsemblBacteria; BAC90979; BAC90979; BAC90979.
DR KEGG; gvi:glr3038; -.
DR PATRIC; fig|251221.4.peg.3068; -.
DR eggNOG; COG0723; Bacteria.
DR HOGENOM; CLU_055690_8_0_3; -.
DR InParanoid; Q7NCE1; -.
DR OMA; KGDPTYI; -.
DR OrthoDB; 1632945at2; -.
DR PhylomeDB; Q7NCE1; -.
DR Proteomes; UP000000557; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IBA:GO_Central.
DR GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0045158; F:electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0016491; F:oxidoreductase activity; IBA:GO_Central.
DR GO; GO:0009496; F:plastoquinol--plastocyanin reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR Gene3D; 2.102.10.10; -; 1.
DR HAMAP; MF_01335; Cytb6_f_Rieske; 1.
DR InterPro; IPR023960; Cyt_b6_f_Rieske.
DR InterPro; IPR017941; Rieske_2Fe-2S.
DR InterPro; IPR036922; Rieske_2Fe-2S_sf.
DR InterPro; IPR014349; Rieske_Fe-S_prot.
DR InterPro; IPR005805; Rieske_Fe-S_prot_C.
DR InterPro; IPR006311; TAT_signal.
DR PANTHER; PTHR10134; PTHR10134; 1.
DR Pfam; PF00355; Rieske; 1.
DR PRINTS; PR00162; RIESKE.
DR SUPFAM; SSF50022; SSF50022; 1.
DR PROSITE; PS51296; RIESKE; 1.
DR PROSITE; PS51318; TAT; 1.
PE 3: Inferred from homology;
KW 2Fe-2S; Cell inner membrane; Cell membrane; Disulfide bond;
KW Electron transport; Iron; Iron-sulfur; Membrane; Metal-binding;
KW Reference proteome; Translocase; Transmembrane; Transmembrane helix;
KW Transport.
FT CHAIN 1..186
FT /note="Cytochrome b6-f complex iron-sulfur subunit"
FT /id="PRO_0000127774"
FT TRANSMEM 16..38
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01335"
FT DOMAIN 74..163
FT /note="Rieske"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01335"
FT BINDING 109
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01335"
FT BINDING 111
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01335"
FT BINDING 127
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01335"
FT BINDING 130
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01335"
FT DISULFID 114..129
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01335"
SQ SEQUENCE 186 AA; 19638 MW; 5E80B2B76A847107 CRC64;
MSESAAQEIP MSRRQLLSFV TGGAIAATTA ATLYPVVLYF LPPSTAGGGE GVAAKDKEGK
DISVSKLLAA ATPGEPVLTL GLDVNGGDAT YIVINDQKEI ANFGINAVCT HLGCVVPWDN
GAKQFKCPCH GSVYNADGGL ERGPAPQPLA LVKATVSDDK VLIAPWTEQD FRCTDLWCNK
DPYWVK
