ID A0A0U5AP43_9BACT Unreviewed; 117 AA.
AC A0A0U5AP43;
DT 16-MAR-2016, integrated into UniProtKB/TrEMBL.
DT 16-MAR-2016, sequence version 1.
DT 24-JAN-2024, entry version 30.
DE RecName: Full=NADH-quinone oxidoreductase subunit A {ECO:0000256|HAMAP-Rule:MF_01394};
DE EC=7.1.1.- {ECO:0000256|HAMAP-Rule:MF_01394};
DE AltName: Full=NADH dehydrogenase I subunit A {ECO:0000256|HAMAP-Rule:MF_01394};
DE AltName: Full=NDH-1 subunit A {ECO:0000256|HAMAP-Rule:MF_01394};
DE AltName: Full=NUO1 {ECO:0000256|HAMAP-Rule:MF_01394};
GN Name=nuoA {ECO:0000256|HAMAP-Rule:MF_01394};
GN ORFNames=THC_1298 {ECO:0000313|EMBL:BAU23666.1};
OS Caldimicrobium thiodismutans.
OC Bacteria; Thermodesulfobacteriota; Thermodesulfobacteria;
OC Thermodesulfobacteriales; Thermodesulfobacteriaceae; Caldimicrobium.
OX NCBI_TaxID=1653476 {ECO:0000313|EMBL:BAU23666.1, ECO:0000313|Proteomes:UP000068196};
RN [1] {ECO:0000313|EMBL:BAU23666.1, ECO:0000313|Proteomes:UP000068196}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TF1 {ECO:0000313|EMBL:BAU23666.1,
RC ECO:0000313|Proteomes:UP000068196};
RX PubMed=26842785; DOI=10.1099/ijsem.0.000947;
RA Kojima H., Umezawa K., Fukui M.;
RT "Caldimicrobium thiodismutans sp. nov., a sulfur-disproportionating
RT bacterium isolated from a hot spring, and emended description of the genus
RT Caldimicrobium.";
RL Int. J. Syst. Evol. Microbiol. 66:1828-1831(2016).
RN [2] {ECO:0000313|Proteomes:UP000068196}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TF1 {ECO:0000313|Proteomes:UP000068196};
RA Kojima H., Umezawa K., Fukui M.;
RT "Caldimicrobium thiodismutans sp. nov., a sulfur-disproportionating
RT bacterium isolated from a hot spring.";
RL Int. J. Syst. Evol. Microbiol. 0:0-0(2016).
CC -!- FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur
CC (Fe-S) centers, to quinones in the respiratory chain. The immediate
CC electron acceptor for the enzyme in this species is believed to be
CC ubiquinone. Couples the redox reaction to proton translocation (for
CC every two electrons transferred, four hydrogen ions are translocated
CC across the cytoplasmic membrane), and thus conserves the redox energy
CC in a proton gradient. {ECO:0000256|HAMAP-Rule:MF_01394}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a quinone + 5 H(+)(in) + NADH = a quinol + 4 H(+)(out) +
CC NAD(+); Xref=Rhea:RHEA:57888, ChEBI:CHEBI:15378, ChEBI:CHEBI:24646,
CC ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:132124;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01394,
CC ECO:0000256|RuleBase:RU003639};
CC -!- SUBUNIT: NDH-1 is composed of 14 different subunits. Subunits NuoA, H,
CC J, K, L, M, N constitute the membrane sector of the complex.
CC {ECO:0000256|HAMAP-Rule:MF_01394}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_01394,
CC ECO:0000256|RuleBase:RU003639}; Multi-pass membrane protein
CC {ECO:0000256|HAMAP-Rule:MF_01394, ECO:0000256|RuleBase:RU003639}.
CC -!- SIMILARITY: Belongs to the complex I subunit 3 family.
CC {ECO:0000256|ARBA:ARBA00008472, ECO:0000256|HAMAP-Rule:MF_01394,
CC ECO:0000256|RuleBase:RU003639}.
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DR EMBL; AP014945; BAU23666.1; -; Genomic_DNA.
DR RefSeq; WP_068515026.1; NZ_AP014945.1.
DR AlphaFoldDB; A0A0U5AP43; -.
DR STRING; 1653476.THC_1298; -.
DR KEGG; cthi:THC_1298; -.
DR PATRIC; fig|1653476.3.peg.1347; -.
DR OrthoDB; 9791970at2; -.
DR Proteomes; UP000068196; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR Gene3D; 1.20.58.1610; NADH:ubiquinone/plastoquinone oxidoreductase, chain 3; 1.
DR HAMAP; MF_01394; NDH1_NuoA; 1.
DR InterPro; IPR023043; NAD(P)H_OxRDtase_bac/plastid.
DR InterPro; IPR000440; NADH_UbQ/plastoQ_OxRdtase_su3.
DR InterPro; IPR038430; NDAH_ubi_oxred_su3_sf.
DR PANTHER; PTHR11058; NADH-UBIQUINONE OXIDOREDUCTASE CHAIN 3; 1.
DR PANTHER; PTHR11058:SF9; NADH-UBIQUINONE OXIDOREDUCTASE CHAIN 3; 1.
DR Pfam; PF00507; Oxidored_q4; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|HAMAP-Rule:MF_01394};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_01394};
KW NAD {ECO:0000256|HAMAP-Rule:MF_01394, ECO:0000256|RuleBase:RU003639};
KW Quinone {ECO:0000256|HAMAP-Rule:MF_01394, ECO:0000256|RuleBase:RU003639};
KW Reference proteome {ECO:0000313|Proteomes:UP000068196};
KW Translocase {ECO:0000256|HAMAP-Rule:MF_01394};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW Rule:MF_01394};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW Rule:MF_01394};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_01394};
KW Ubiquinone {ECO:0000256|HAMAP-Rule:MF_01394}.
FT TRANSMEM 6..24
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
FT TRANSMEM 59..80
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
FT TRANSMEM 86..108
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
SQ SEQUENCE 117 AA; 13218 MW; 890260E80A193B48 CRC64;
MGTMLPFLIF AGLVLIIGLA MLLGNKILSV KRPTPEKLIP YECGIDPSGD TKVPFRVKFY
LIALIFLIFD VEVVFIYPWA VVFEELAWFG FVEIAIFVIL LLGAYLYALN EGALQWE
//
