ID U2ZRH3_9SPHN Unreviewed; 124 AA.
AC U2ZRH3;
DT 13-NOV-2013, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2013, sequence version 1.
DT 24-JAN-2024, entry version 42.
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 ECO:0000313|EMBL:GAD47964.1};
GN ORFNames=NT2_02_00470 {ECO:0000313|EMBL:GAD47964.1};
OS Caenibius tardaugens NBRC 16725.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Erythrobacteraceae; Caenibius.
OX NCBI_TaxID=1219035 {ECO:0000313|EMBL:GAD47964.1, ECO:0000313|Proteomes:UP000016568};
RN [1] {ECO:0000313|EMBL:GAD47964.1, ECO:0000313|Proteomes:UP000016568}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NBRC 16725 {ECO:0000313|EMBL:GAD47964.1,
RC ECO:0000313|Proteomes:UP000016568};
RA Isaki S., Hosoyama A., Tsuchikane K., Katsumata H., Ando Y., Yamazaki S.,
RA Fujita N.;
RT "Whole genome shotgun sequence of Novosphingobium tardaugens NBRC 16725.";
RL Submitted (SEP-2013) to the EMBL/GenBank/DDBJ databases.
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}.
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:GAD47964.1}.
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DR EMBL; BASZ01000002; GAD47964.1; -; Genomic_DNA.
DR RefSeq; WP_021688871.1; NZ_CP034179.1.
DR AlphaFoldDB; U2ZRH3; -.
DR KEGG; ntd:EGO55_20145; -.
DR eggNOG; COG0838; Bacteria.
DR OrthoDB; 9791970at2; -.
DR Proteomes; UP000016568; Unassembled WGS sequence.
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:UP000016568};
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..34
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
FT TRANSMEM 66..89
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
FT TRANSMEM 95..116
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
SQ SEQUENCE 124 AA; 13929 MW; BB9ED91EC88C7792 CRC64;
MLDLSQYLPI LIFLGIALLL SAAFVFLPIG VSYLTGSRSP SAEKLSEYEC GFPAFEDSRS
QFDVRFYLVA ILFIIFDLEA AFLFPWAVSL DLTGWPGWIT MMIFLGELAI GLAYAWKKGA
LDWE
//
