ID   RSXB_ECOLI              Reviewed;         192 AA.
AC   P77223;
DT   15-JUL-1999, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   27-MAR-2024, entry version 175.
DE   RecName: Full=Ion-translocating oxidoreductase complex subunit B {ECO:0000255|HAMAP-Rule:MF_00463, ECO:0000305};
DE            EC=7.-.-.- {ECO:0000255|HAMAP-Rule:MF_00463, ECO:0000305};
DE   AltName: Full=Rsx electron transport complex subunit B {ECO:0000255|HAMAP-Rule:MF_00463, ECO:0000305};
GN   Name=rsxB {ECO:0000255|HAMAP-Rule:MF_00463,
GN   ECO:0000303|PubMed:12773378}; Synonyms=rnfB, ydgM;
GN   OrderedLocusNames=b1628, JW1620;
OS   Escherichia coli (strain K12).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=83333;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / W3110 / ATCC 27325 / DSM 5911;
RX   PubMed=9097039; DOI=10.1093/dnares/3.6.363;
RA   Aiba H., Baba T., Fujita K., Hayashi K., Inada T., Isono K., Itoh T.,
RA   Kasai H., Kashimoto K., Kimura S., Kitakawa M., Kitagawa M., Makino K.,
RA   Miki T., Mizobuchi K., Mori H., Mori T., Motomura K., Nakade S.,
RA   Nakamura Y., Nashimoto H., Nishio Y., Oshima T., Saito N., Sampei G.,
RA   Seki Y., Sivasundaram S., Tagami H., Takeda J., Takemoto K., Takeuchi Y.,
RA   Wada C., Yamamoto Y., Horiuchi T.;
RT   "A 570-kb DNA sequence of the Escherichia coli K-12 genome corresponding to
RT   the 28.0-40.1 min region on the linkage map.";
RL   DNA Res. 3:363-377(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / MG1655 / ATCC 47076;
RX   PubMed=9278503; DOI=10.1126/science.277.5331.1453;
RA   Blattner F.R., Plunkett G. III, Bloch C.A., Perna N.T., Burland V.,
RA   Riley M., Collado-Vides J., Glasner J.D., Rode C.K., Mayhew G.F.,
RA   Gregor J., Davis N.W., Kirkpatrick H.A., Goeden M.A., Rose D.J., Mau B.,
RA   Shao Y.;
RT   "The complete genome sequence of Escherichia coli K-12.";
RL   Science 277:1453-1462(1997).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / W3110 / ATCC 27325 / DSM 5911;
RX   PubMed=16738553; DOI=10.1038/msb4100049;
RA   Hayashi K., Morooka N., Yamamoto Y., Fujita K., Isono K., Choi S.,
RA   Ohtsubo E., Baba T., Wanner B.L., Mori H., Horiuchi T.;
RT   "Highly accurate genome sequences of Escherichia coli K-12 strains MG1655
RT   and W3110.";
RL   Mol. Syst. Biol. 2:E1-E5(2006).
RN   [4]
RP   FUNCTION, SUBUNIT, AND GENE NAME.
RX   PubMed=12773378; DOI=10.1093/emboj/cdg252;
RA   Koo M.S., Lee J.H., Rah S.Y., Yeo W.S., Lee J.W., Lee K.L., Koh Y.S.,
RA   Kang S.O., Roe J.H.;
RT   "A reducing system of the superoxide sensor SoxR in Escherichia coli.";
RL   EMBO J. 22:2614-2622(2003).
CC   -!- FUNCTION: Part of a membrane-bound complex that couples electron
CC       transfer with translocation of ions across the membrane (By
CC       similarity). Required to maintain the reduced state of SoxR. Probably
CC       transfers electron from NAD(P)H to SoxR (PubMed:12773378).
CC       {ECO:0000255|HAMAP-Rule:MF_00463, ECO:0000269|PubMed:12773378}.
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00463};
CC       Note=Binds 3 [4Fe-4S] clusters. {ECO:0000255|HAMAP-Rule:MF_00463};
CC   -!- SUBUNIT: The complex is composed of six subunits: RsxA, RsxB, RsxC,
CC       RsxD, RsxE and RsxG. {ECO:0000255|HAMAP-Rule:MF_00463,
CC       ECO:0000305|PubMed:12773378}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00463}.
CC   -!- SIMILARITY: Belongs to the 4Fe4S bacterial-type ferredoxin family. RnfB
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00463}.
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DR   EMBL; U00096; AAC74700.1; -; Genomic_DNA.
DR   EMBL; AP009048; BAA15383.1; -; Genomic_DNA.
DR   PIR; F64919; F64919.
DR   RefSeq; NP_416145.1; NC_000913.3.
DR   RefSeq; WP_000991805.1; NZ_SSZK01000001.1.
DR   AlphaFoldDB; P77223; -.
DR   BioGRID; 4261721; 47.
DR   IntAct; P77223; 1.
DR   STRING; 511145.b1628; -.
DR   TCDB; 3.D.6.1.4; the ion (h(+) or na(+))-translocating nadh:ferredoxin oxidoreductase (nfo or rnf) family.
DR   PaxDb; 511145-b1628; -.
DR   EnsemblBacteria; AAC74700; AAC74700; b1628.
DR   GeneID; 946146; -.
DR   KEGG; ecj:JW1620; -.
DR   KEGG; eco:b1628; -.
DR   PATRIC; fig|1411691.4.peg.633; -.
DR   EchoBASE; EB3693; -.
DR   eggNOG; COG2878; Bacteria.
DR   HOGENOM; CLU_063448_2_0_6; -.
DR   InParanoid; P77223; -.
DR   OMA; KVEGDPI; -.
DR   OrthoDB; 9789936at2; -.
DR   PhylomeDB; P77223; -.
DR   BioCyc; EcoCyc:G6872-MONOMER; -.
DR   PRO; PR:P77223; -.
DR   Proteomes; UP000000318; Chromosome.
DR   Proteomes; UP000000625; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   Gene3D; 3.30.70.20; -; 1.
DR   Gene3D; 1.10.15.40; Electron transport complex subunit B, putative Fe-S cluster; 1.
DR   HAMAP; MF_00463; RsxB_RnfB; 1.
DR   InterPro; IPR007202; 4Fe-4S_dom.
DR   InterPro; IPR017896; 4Fe4S_Fe-S-bd.
DR   InterPro; IPR017900; 4Fe4S_Fe_S_CS.
DR   InterPro; IPR010207; Elect_transpt_cplx_RnfB/RsxB.
DR   InterPro; IPR016463; RnfB/RsxB_Proteobac.
DR   NCBIfam; TIGR01944; rnfB; 1.
DR   PANTHER; PTHR43560; ION-TRANSLOCATING OXIDOREDUCTASE COMPLEX SUBUNIT B; 1.
DR   PANTHER; PTHR43560:SF1; ION-TRANSLOCATING OXIDOREDUCTASE COMPLEX SUBUNIT B; 1.
DR   Pfam; PF14697; Fer4_21; 1.
DR   Pfam; PF04060; FeS; 1.
DR   PIRSF; PIRSF005784; Elect_transpt_RnfB; 1.
DR   SUPFAM; SSF54862; 4Fe-4S ferredoxins; 1.
DR   PROSITE; PS51656; 4FE4S; 1.
DR   PROSITE; PS00198; 4FE4S_FER_1; 2.
DR   PROSITE; PS51379; 4FE4S_FER_2; 2.
PE   1: Evidence at protein level;
KW   4Fe-4S; Cell inner membrane; Cell membrane; Electron transport; Iron;
KW   Iron-sulfur; Membrane; Metal-binding; Reference proteome; Repeat;
KW   Translocase; Transport.
FT   CHAIN           1..192
FT                   /note="Ion-translocating oxidoreductase complex subunit B"
FT                   /id="PRO_0000216271"
FT   DOMAIN          32..91
FT                   /note="4Fe-4S"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   DOMAIN          108..137
FT                   /note="4Fe-4S ferredoxin-type 1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   DOMAIN          138..167
FT                   /note="4Fe-4S ferredoxin-type 2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   REGION          1..26
FT                   /note="Hydrophobic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         49
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         52
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         57
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         74
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         117
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         120
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         123
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         127
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="3"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         147
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="3"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         150
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="3"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         153
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="3"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
FT   BINDING         157
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00463"
SQ   SEQUENCE   192 AA;  20544 MW;  69EC54592EACB7B4 CRC64;
     MNAIWIAVAA VSLLGLAFGA ILGYASRRFA VEDDPVVEKI DEILPQSQCG QCGYPGCRPY
     AEAISCNGEK INRCAPGGEA VMLKIAELLN VEPQPLDGEA QEITPARMVA VIDENNCIGC
     TKCIQACPVD AIVGATRAMH TVMSDLCTGC NLCVDPCPTH CISLQPVAET PDSWKWDLNT
     IPVRIIPVEH HA
//