ID   KEFG_ECO55              Reviewed;         184 AA.
AC   B7L4M8;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   25-MAY-2022, entry version 67.
DE   RecName: Full=Glutathione-regulated potassium-efflux system ancillary protein KefG {ECO:0000255|HAMAP-Rule:MF_01415};
DE   AltName: Full=Putative quinone oxidoreductase KefG {ECO:0000255|HAMAP-Rule:MF_01415};
DE            EC=1.6.5.2 {ECO:0000255|HAMAP-Rule:MF_01415};
GN   Name=kefG {ECO:0000255|HAMAP-Rule:MF_01415};
GN   OrderedLocusNames=EC55989_3755;
OS   Escherichia coli (strain 55989 / EAEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=585055;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=55989 / EAEC;
RX   PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA   Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA   Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA   Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA   Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA   Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA   Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA   Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT   "Organised genome dynamics in the Escherichia coli species results in
RT   highly diverse adaptive paths.";
RL   PLoS Genet. 5:E1000344-E1000344(2009).
CC   -!- FUNCTION: Regulatory subunit of a potassium efflux system that confers
CC       protection against electrophiles. Required for full activity of KefB.
CC       {ECO:0000255|HAMAP-Rule:MF_01415}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a quinone + H(+) + NADH = a quinol + NAD(+);
CC         Xref=Rhea:RHEA:46160, ChEBI:CHEBI:15378, ChEBI:CHEBI:24646,
CC         ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:132124; EC=1.6.5.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01415};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a quinone + H(+) + NADPH = a quinol + NADP(+);
CC         Xref=Rhea:RHEA:46164, ChEBI:CHEBI:15378, ChEBI:CHEBI:24646,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:132124; EC=1.6.5.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01415};
CC   -!- SUBUNIT: Interacts with KefB. {ECO:0000255|HAMAP-Rule:MF_01415}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01415}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01415}; Cytoplasmic side {ECO:0000255|HAMAP-Rule:MF_01415}.
CC   -!- SIMILARITY: Belongs to the NAD(P)H dehydrogenase (quinone) family. KefG
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01415}.
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DR   EMBL; CU928145; CAV00072.1; -; Genomic_DNA.
DR   AlphaFoldDB; B7L4M8; -.
DR   SMR; B7L4M8; -.
DR   EnsemblBacteria; CAV00072; CAV00072; EC55989_3755.
DR   KEGG; eck:EC55989_3755; -.
DR   HOGENOM; CLU_058643_0_1_6; -.
DR   OMA; RYPMSDI; -.
DR   Proteomes; UP000000746; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0050136; F:NADH dehydrogenase (quinone) activity; IEA:RHEA.
DR   GO; GO:0008753; F:NADPH dehydrogenase (quinone) activity; IEA:RHEA.
DR   GO; GO:0032414; P:positive regulation of ion transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR   GO; GO:1901381; P:positive regulation of potassium ion transmembrane transport; IEA:UniProtKB-UniRule.
DR   GO; GO:0006813; P:potassium ion transport; IEA:InterPro.
DR   Gene3D; 3.40.50.360; -; 1.
DR   HAMAP; MF_01415; K_H_efflux_KefG; 1.
DR   InterPro; IPR003680; Flavodoxin_fold.
DR   InterPro; IPR029039; Flavoprotein-like_sf.
DR   InterPro; IPR023947; K_H_efflux_KefG.
DR   Pfam; PF02525; Flavodoxin_2; 1.
DR   SUPFAM; SSF52218; SSF52218; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Membrane; NAD; Oxidoreductase.
FT   CHAIN           1..184
FT                   /note="Glutathione-regulated potassium-efflux system
FT                   ancillary protein KefG"
FT                   /id="PRO_1000184624"
SQ   SEQUENCE   184 AA;  20958 MW;  F3B1123F7378EAB7 CRC64;
     MMSQPAKVLL LYAHPESQDS VANRVLLKPA TQLSNVTVHD LYAHYPDFFI DIPREQALLR
     EHEVIVFQHP LYTYSCPALL KEWLDRVLSR GFASGPGGNQ LAGKYWRSVI TTGEPESAYR
     YDALNRYPMS DVLRPFELAA GMCRMHWLSP IIIYWARRQS AQELASHARA YGDWLANPLS
     PGGR