NQRE_HAHCH
ID NQRE_HAHCH Reviewed; 203 AA.
AC Q2SIP7;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 24-JAN-2006, sequence version 1.
DT 25-MAY-2022, entry version 88.
DE RecName: Full=Na(+)-translocating NADH-quinone reductase subunit E {ECO:0000255|HAMAP-Rule:MF_00429};
DE Short=Na(+)-NQR subunit E {ECO:0000255|HAMAP-Rule:MF_00429};
DE Short=Na(+)-translocating NQR subunit E {ECO:0000255|HAMAP-Rule:MF_00429};
DE EC=7.2.1.1 {ECO:0000255|HAMAP-Rule:MF_00429};
DE AltName: Full=NQR complex subunit E {ECO:0000255|HAMAP-Rule:MF_00429};
DE AltName: Full=NQR-1 subunit E {ECO:0000255|HAMAP-Rule:MF_00429};
GN Name=nqrE {ECO:0000255|HAMAP-Rule:MF_00429}; OrderedLocusNames=HCH_02689;
OS Hahella chejuensis (strain KCTC 2396).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Oceanospirillales;
OC Hahellaceae; Hahella.
OX NCBI_TaxID=349521;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KCTC 2396;
RX PubMed=16352867; DOI=10.1093/nar/gki1016;
RA Jeong H., Yim J.H., Lee C., Choi S.-H., Park Y.K., Yoon S.H., Hur C.-G.,
RA Kang H.-Y., Kim D., Lee H.H., Park K.H., Park S.-H., Park H.-S., Lee H.K.,
RA Oh T.K., Kim J.F.;
RT "Genomic blueprint of Hahella chejuensis, a marine microbe producing an
RT algicidal agent.";
RL Nucleic Acids Res. 33:7066-7073(2005).
CC -!- FUNCTION: NQR complex catalyzes the reduction of ubiquinone-1 to
CC ubiquinol by two successive reactions, coupled with the transport of
CC Na(+) ions from the cytoplasm to the periplasm. NqrA to NqrE are
CC probably involved in the second step, the conversion of ubisemiquinone
CC to ubiquinol. {ECO:0000255|HAMAP-Rule:MF_00429}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a ubiquinone + H(+) + n Na(+)(in) + NADH = a ubiquinol + n
CC Na(+)(out) + NAD(+); Xref=Rhea:RHEA:47748, Rhea:RHEA-COMP:9565,
CC Rhea:RHEA-COMP:9566, ChEBI:CHEBI:15378, ChEBI:CHEBI:16389,
CC ChEBI:CHEBI:17976, ChEBI:CHEBI:29101, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945; EC=7.2.1.1; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00429};
CC -!- SUBUNIT: Composed of six subunits; NqrA, NqrB, NqrC, NqrD, NqrE and
CC NqrF. {ECO:0000255|HAMAP-Rule:MF_00429}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_00429}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00429}.
CC -!- SIMILARITY: Belongs to the NqrDE/RnfAE family. {ECO:0000255|HAMAP-
CC Rule:MF_00429}.
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DR EMBL; CP000155; ABC29477.1; -; Genomic_DNA.
DR RefSeq; WP_011396546.1; NC_007645.1.
DR AlphaFoldDB; Q2SIP7; -.
DR SMR; Q2SIP7; -.
DR STRING; 349521.HCH_02689; -.
DR EnsemblBacteria; ABC29477; ABC29477; HCH_02689.
DR KEGG; hch:HCH_02689; -.
DR eggNOG; COG2209; Bacteria.
DR HOGENOM; CLU_095255_0_0_6; -.
DR OMA; YFLGMCS; -.
DR OrthoDB; 1814639at2; -.
DR Proteomes; UP000000238; Chromosome.
DR GO; GO:0009276; C:Gram-negative-bacterium-type cell wall; IEA:InterPro.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016655; F:oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor; IEA:UniProtKB-UniRule.
DR GO; GO:0022904; P:respiratory electron transport chain; IEA:InterPro.
DR GO; GO:0006814; P:sodium ion transport; IEA:UniProtKB-UniRule.
DR HAMAP; MF_00429; NqrE; 1.
DR InterPro; IPR003667; NqrDE/RnfAE.
DR InterPro; IPR010967; NqrE.
DR PANTHER; PTHR30335:SF1; PTHR30335:SF1; 1.
DR Pfam; PF02508; Rnf-Nqr; 1.
DR PIRSF; PIRSF006102; NQR_DE; 1.
DR TIGRFAMs; TIGR01940; nqrE; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Ion transport; Membrane; NAD;
KW Reference proteome; Sodium; Sodium transport; Translocase; Transmembrane;
KW Transmembrane helix; Transport; Ubiquinone.
FT CHAIN 1..203
FT /note="Na(+)-translocating NADH-quinone reductase subunit
FT E"
FT /id="PRO_1000060195"
FT TRANSMEM 12..32
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00429"
FT TRANSMEM 36..56
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00429"
FT TRANSMEM 82..102
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00429"
FT TRANSMEM 115..135
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00429"
FT TRANSMEM 145..165
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00429"
FT TRANSMEM 181..201
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00429"
SQ SEQUENCE 203 AA; 21735 MW; 2D926DDB1A8B3235 CRC64;
MFEHYLSLLI KAVFVENMAL AFFLGMCTFL ALSKKMEAAI GLGIAVVVVL SVTVPVNNAI
YNGLLREGAL SWAGLPNVDL SFLGLLTYIG VIAAIVQILE MVLDKFFPAL YNALGVFLPL
ITVNCAIMGA SLFMVERDYT FGESLVYGFG AGLGWALAII ALAGIREKLK YSDVPEGLRG
LGITFITVGL MSLGFMSFSG ISL