ID D5VGY6_CAUST Unreviewed; 125 AA.
AC D5VGY6;
DT 13-JUL-2010, integrated into UniProtKB/TrEMBL.
DT 13-JUL-2010, sequence version 1.
DT 27-MAR-2024, entry version 72.
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 OrderedLocusNames=Cseg_2242 {ECO:0000313|EMBL:ADG10704.1};
OS Caulobacter segnis (strain ATCC 21756 / DSM 7131 / JCM 7823 / NBRC 15250 /
OS LMG 17158 / TK0059) (Mycoplana segnis).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Caulobacterales;
OC Caulobacteraceae; Caulobacter.
OX NCBI_TaxID=509190 {ECO:0000313|EMBL:ADG10704.1, ECO:0000313|Proteomes:UP000002629};
RN [1] {ECO:0000313|Proteomes:UP000002629}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 21756 / DSM 7131 / JCM 7823 / NBRC 15250 / LMG 17158 /
RC TK0059 {ECO:0000313|Proteomes:UP000002629};
RX PubMed=21705585; DOI=10.1128/JB.05453-11;
RG US DOE Joint Genome Institute;
RA Brown P.J., Kysela D.T., Buechlein A., Hemmerich C., Brun Y.V.;
RT "Genome sequences of eight morphologically diverse alphaproteobacteria.";
RL J. Bacteriol. 193:4567-4568(2011).
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 inner membrane {ECO:0000256|HAMAP-
CC Rule:MF_01394}; Multi-pass membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_01394}. Cell membrane {ECO:0000256|RuleBase:RU003639}; Multi-
CC pass membrane protein {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; CP002008; ADG10704.1; -; Genomic_DNA.
DR RefSeq; WP_013079359.1; NC_014100.1.
DR AlphaFoldDB; D5VGY6; -.
DR STRING; 509190.Cseg_2242; -.
DR KEGG; cse:Cseg_2242; -.
DR eggNOG; COG0838; Bacteria.
DR HOGENOM; CLU_119549_3_1_5; -.
DR Proteomes; UP000002629; 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 inner membrane {ECO:0000256|HAMAP-Rule:MF_01394};
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 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, ECO:0000313|EMBL:ADG10704.1}.
FT TRANSMEM 6..33
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
FT TRANSMEM 63..85
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
FT TRANSMEM 97..115
FT /note="Helical"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01394"
SQ SEQUENCE 125 AA; 14139 MW; E9538B2E17BC51F1 CRC64;
MTAFLLQYLP IVIFLGIAAA IGIVFLLAAA VLAPKAPDPE KLSAYECGFN AFDDARMKFD
VRFYLVSILF IIFDLEVAFL FPWAVTLMKL PHDVAQFAFW SMMAFLGVLT VGFIYEWKKG
ALEWE
//
