ID C1D4S7_LARHH Unreviewed; 194 AA.
AC C1D4S7;
DT 26-MAY-2009, integrated into UniProtKB/TrEMBL.
DT 26-MAY-2009, sequence version 1.
DT 27-MAR-2024, entry version 80.
DE RecName: Full=Ubiquinol-cytochrome c reductase iron-sulfur subunit {ECO:0000256|ARBA:ARBA00019816, ECO:0000256|RuleBase:RU004494};
DE EC=7.1.1.8 {ECO:0000256|ARBA:ARBA00012951, ECO:0000256|RuleBase:RU004494};
GN Name=petA {ECO:0000313|EMBL:ACO75868.1};
GN OrderedLocusNames=LHK_02890 {ECO:0000313|EMBL:ACO75868.1};
OS Laribacter hongkongensis (strain HLHK9).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Neisseriales;
OC Aquaspirillaceae; Laribacter.
OX NCBI_TaxID=557598 {ECO:0000313|EMBL:ACO75868.1, ECO:0000313|Proteomes:UP000002010};
RN [1] {ECO:0000313|EMBL:ACO75868.1, ECO:0000313|Proteomes:UP000002010}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HLHK9 {ECO:0000313|EMBL:ACO75868.1,
RC ECO:0000313|Proteomes:UP000002010};
RX PubMed=19283063; DOI=10.1371/journal.pgen.1000416;
RA Woo P.C., Lau S.K., Tse H., Teng J.L., Curreem S.O., Tsang A.K., Fan R.Y.,
RA Wong G.K., Huang Y., Loman N.J., Snyder L.A., Cai J.J., Huang J.D., Mak W.,
RA Pallen M.J., Lok S., Yuen K.Y.;
RT "The complete genome and proteome of Laribacter hongkongensis reveal
RT potential mechanisms for adaptations to different temperatures and
RT habitats.";
RL PLoS Genet. 5:E1000416-E1000416(2009).
CC -!- FUNCTION: Component of the ubiquinol-cytochrome c reductase complex
CC (complex III or cytochrome b-c1 complex), which is a respiratory chain
CC that generates an electrochemical potential coupled to ATP synthesis.
CC {ECO:0000256|ARBA:ARBA00002444}.
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|RuleBase:RU004494};
CC -!- COFACTOR:
CC Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC Evidence={ECO:0000256|RuleBase:RU004494};
CC Note=Binds 1 [2Fe-2S] cluster per subunit.
CC {ECO:0000256|RuleBase:RU004494};
CC -!- SUBUNIT: The main subunits of complex b-c1 are: cytochrome b,
CC cytochrome c1 and the Rieske protein. {ECO:0000256|ARBA:ARBA00011649,
CC ECO:0000256|RuleBase:RU004497}.
CC -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004167}; Single-
CC pass membrane protein {ECO:0000256|ARBA:ARBA00004167}.
CC -!- MISCELLANEOUS: The Rieske protein is a high potential 2Fe-2S protein.
CC {ECO:0000256|RuleBase:RU004494}.
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DR EMBL; CP001154; ACO75868.1; -; Genomic_DNA.
DR RefSeq; WP_012698331.1; NC_012559.1.
DR AlphaFoldDB; C1D4S7; -.
DR STRING; 557598.LHK_02890; -.
DR GeneID; 75110175; -.
DR KEGG; lhk:LHK_02890; -.
DR eggNOG; COG0723; Bacteria.
DR HOGENOM; CLU_055690_0_2_4; -.
DR Proteomes; UP000002010; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR GO; GO:0043231; C:intracellular membrane-bounded organelle; IEA:UniProt.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-KW.
DR GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008121; F:ubiquinol-cytochrome-c reductase activity; IEA:UniProtKB-EC.
DR CDD; cd03470; Rieske_cytochrome_bc1; 1.
DR Gene3D; 2.102.10.10; Rieske [2Fe-2S] iron-sulphur domain; 1.
DR Gene3D; 1.20.5.510; Single helix bin; 1.
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 InterPro; IPR019470; Ubiq_cytC_Rdtase_Fe-S_su_TAT.
DR InterPro; IPR006317; Ubiquinol_cyt_c_Rdtase_Fe-S-su.
DR NCBIfam; TIGR01416; Rieske_proteo; 1.
DR PANTHER; PTHR10134; CYTOCHROME B-C1 COMPLEX SUBUNIT RIESKE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR10134:SF20; CYTOCHROME B-C1 COMPLEX SUBUNIT RIESKE, MITOCHONDRIAL-RELATED; 1.
DR Pfam; PF00355; Rieske; 1.
DR Pfam; PF10399; UCR_Fe-S_N; 1.
DR PRINTS; PR00162; RIESKE.
DR SUPFAM; SSF50022; ISP domain; 1.
DR PROSITE; PS51296; RIESKE; 1.
DR PROSITE; PS51318; TAT; 1.
PE 4: Predicted;
KW 2Fe-2S {ECO:0000256|ARBA:ARBA00022714};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475};
KW Disulfide bond {ECO:0000256|ARBA:ARBA00023157};
KW Electron transport {ECO:0000256|RuleBase:RU004494};
KW Iron {ECO:0000256|ARBA:ARBA00023004};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|RuleBase:RU004494};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Reference proteome {ECO:0000313|Proteomes:UP000002010};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU004494};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|RuleBase:RU004494}; Transport {ECO:0000256|RuleBase:RU004494}.
FT TRANSMEM 12..35
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU004494"
FT DOMAIN 90..189
FT /note="Rieske"
FT /evidence="ECO:0000259|PROSITE:PS51296"
SQ SEQUENCE 194 AA; 20912 MW; 288290586814CE84 CRC64;
MSEQQVDKGR RRFLTLATSA AGGVAAVGVA TPFLLSFFPS ERAKAAGAPV EVDISKLEPG
QKINVEWRGK PVWVLSRTPE QLQNLPKLDG KLVDPKSEMP QQPVYCQNAT RSIKPEIMVA
VGICTHLGCS PTFRPDLAPA DLGADWLGGF YCPCHGSKFD LAARVYSGVP APSNLEIPPH
KYLSDTALLI GDDK
//
