ID A0A098SEJ4_9BACT Unreviewed; 551 AA.
AC A0A098SEJ4;
DT 07-JAN-2015, integrated into UniProtKB/TrEMBL.
DT 07-JAN-2015, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=Na(+)-translocating NADH-quinone reductase subunit A {ECO:0000256|HAMAP-Rule:MF_00425};
DE Short=Na(+)-NQR subunit A {ECO:0000256|HAMAP-Rule:MF_00425};
DE Short=Na(+)-translocating NQR subunit A {ECO:0000256|HAMAP-Rule:MF_00425};
DE EC=7.2.1.1 {ECO:0000256|HAMAP-Rule:MF_00425};
DE AltName: Full=NQR complex subunit A {ECO:0000256|HAMAP-Rule:MF_00425};
DE AltName: Full=NQR-1 subunit A {ECO:0000256|HAMAP-Rule:MF_00425};
GN Name=nqrA {ECO:0000256|HAMAP-Rule:MF_00425};
GN ORFNames=IX84_03375 {ECO:0000313|EMBL:KGE89367.1};
OS Phaeodactylibacter xiamenensis.
OC Bacteria; Bacteroidota; Saprospiria; Saprospirales; Haliscomenobacteraceae;
OC Phaeodactylibacter.
OX NCBI_TaxID=1524460 {ECO:0000313|EMBL:KGE89367.1, ECO:0000313|Proteomes:UP000029736};
RN [1] {ECO:0000313|EMBL:KGE89367.1, ECO:0000313|Proteomes:UP000029736}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KD52 {ECO:0000313|EMBL:KGE89367.1,
RC ECO:0000313|Proteomes:UP000029736};
RX PubMed=25052393; DOI=10.1099/ijs.0.063909-0;
RA Chen Z.Jr., Lei X., Lai Q., Li Y., Zhang B., Zhang J., Zhang H., Yang L.,
RA Zheng W., Tian Y., Yu Z., Xu H.Jr., Zheng T.;
RT "Phaeodactylibacter xiamenensis gen. nov., sp. nov., a member of the family
RT Saprospiraceae isolated from the marine alga Phaeodactylum tricornutum.";
RL Int. J. Syst. Evol. Microbiol. 64:3496-3502(2014).
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:0000256|HAMAP-Rule:MF_00425}.
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:0000256|HAMAP-
CC Rule:MF_00425};
CC -!- SUBUNIT: Composed of six subunits; NqrA, NqrB, NqrC, NqrD, NqrE and
CC NqrF. {ECO:0000256|HAMAP-Rule:MF_00425}.
CC -!- SIMILARITY: Belongs to the NqrA family. {ECO:0000256|HAMAP-
CC Rule:MF_00425}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KGE89367.1}.
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DR EMBL; JPOS01000010; KGE89367.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A098SEJ4; -.
DR STRING; 1524460.IX84_03375; -.
DR OrthoDB; 9774536at2; -.
DR Proteomes; UP000029736; Unassembled WGS sequence.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0016655; F:oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor; IEA:UniProtKB-UniRule.
DR GO; GO:0006814; P:sodium ion transport; IEA:UniProtKB-UniRule.
DR HAMAP; MF_00425; NqrA; 1.
DR InterPro; IPR008703; NqrA.
DR InterPro; IPR022615; NqrA_C_domain.
DR NCBIfam; TIGR01936; nqrA; 1.
DR PANTHER; PTHR37839; NA(+)-TRANSLOCATING NADH-QUINONE REDUCTASE SUBUNIT A; 1.
DR PANTHER; PTHR37839:SF1; NA(+)-TRANSLOCATING NADH-QUINONE REDUCTASE SUBUNIT A; 1.
DR Pfam; PF05896; NQRA; 1.
DR Pfam; PF11973; NQRA_SLBB; 1.
PE 3: Inferred from homology;
KW Ion transport {ECO:0000256|ARBA:ARBA00023065, ECO:0000256|HAMAP-
KW Rule:MF_00425}; Membrane {ECO:0000256|SAM:Phobius};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_00425};
KW Reference proteome {ECO:0000313|Proteomes:UP000029736};
KW Signal {ECO:0000256|SAM:SignalP};
KW Sodium {ECO:0000256|ARBA:ARBA00023053, ECO:0000256|HAMAP-Rule:MF_00425};
KW Sodium transport {ECO:0000256|ARBA:ARBA00023201, ECO:0000256|HAMAP-
KW Rule:MF_00425};
KW Translocase {ECO:0000256|ARBA:ARBA00022967, ECO:0000256|HAMAP-
KW Rule:MF_00425}; Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_00425};
KW Ubiquinone {ECO:0000256|ARBA:ARBA00023075, ECO:0000256|HAMAP-
KW Rule:MF_00425}.
FT SIGNAL 1..25
FT /evidence="ECO:0000256|SAM:SignalP"
FT CHAIN 26..551
FT /note="Na(+)-translocating NADH-quinone reductase subunit
FT A"
FT /evidence="ECO:0000256|SAM:SignalP"
FT /id="PRO_5001940264"
FT TRANSMEM 35..55
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 367..414
FT /note="Na(+)-translocating NADH-quinone reductase subunit A
FT C-terminal"
FT /evidence="ECO:0000259|Pfam:PF11973"
SQ SEQUENCE 551 AA; 60692 MW; 4DB68795C8D39C31 CRC64;
MKQTVSKGIL LILAMGAYTT SWAQAGSGGN GFGSVLTYSL IAIAVLIFFF LIIQVSNNLL
AIEAKQLGID EDSGEVGTGN DGFLGRLFKP KKPAFLDEDT PVTYLRRGHD IALEGEAELK
LDESVQAMTF AVQPTNFLGI SPIPKMVVEE GAEVKAGDHL FFDKNRPEMK WVAPVSGEVI
AIERGAKRAI TAVTILADKE QQYRELSAFD LDNSNRDQLV EYLLDAGAWT LFRQRPFNVV
ADYNEVPRDI YISTFDTAPL APNLDFIVEG QEAAFQKGLD VLAKLTSGSV YLGLNAGGDT
APAKAFTEAR GVKQRWFHGK HPAGNVGVQI HHTKPISLSA KVWTLGVQEV LTLGKIFTEQ
RYNAERVVAL TGAELKKPLY VKTKVGAKIE DLLKDNLAND HVRFISGDVL SGKRKELNGF
LDFYDDQITV VEEGDDYALF GWLLPSFNTP SISTTFPSAL VPDMKFKAET NTHGERRAFV
VTGNYESVLP MDLYPQELMK SILIGDFEKM EGLGLPELVE EDVALCEFVC VSKQPVQQIL
RQGLDTMREQ A
//
