NUOH2_RHOPA
ID NUOH2_RHOPA Reviewed; 319 AA.
AC Q6N1Z4;
DT 11-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 102.
DE RecName: Full=NADH-quinone oxidoreductase subunit H 2 {ECO:0000255|HAMAP-Rule:MF_01350};
DE EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01350};
DE AltName: Full=NADH dehydrogenase I subunit H 2 {ECO:0000255|HAMAP-Rule:MF_01350};
DE AltName: Full=NDH-1 subunit H 2 {ECO:0000255|HAMAP-Rule:MF_01350};
GN Name=nuoH2 {ECO:0000255|HAMAP-Rule:MF_01350}; OrderedLocusNames=RPA4258;
OS Rhodopseudomonas palustris (strain ATCC BAA-98 / CGA009).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Bradyrhizobiaceae; Rhodopseudomonas.
OX NCBI_TaxID=258594;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-98 / CGA009;
RX PubMed=14704707; DOI=10.1038/nbt923;
RA Larimer F.W., Chain P., Hauser L., Lamerdin J.E., Malfatti S., Do L.,
RA Land M.L., Pelletier D.A., Beatty J.T., Lang A.S., Tabita F.R.,
RA Gibson J.L., Hanson T.E., Bobst C., Torres y Torres J.L., Peres C.,
RA Harrison F.H., Gibson J., Harwood C.S.;
RT "Complete genome sequence of the metabolically versatile photosynthetic
RT bacterium Rhodopseudomonas palustris.";
RL Nat. Biotechnol. 22:55-61(2004).
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. This subunit may bind ubiquinone.
CC {ECO:0000255|HAMAP-Rule:MF_01350}.
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:0000255|HAMAP-Rule:MF_01350};
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:0000255|HAMAP-Rule:MF_01350}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_01350}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_01350}.
CC -!- SIMILARITY: Belongs to the complex I subunit 1 family.
CC {ECO:0000255|HAMAP-Rule:MF_01350}.
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DR EMBL; BX572606; CAE29699.1; -; Genomic_DNA.
DR RefSeq; WP_011159793.1; NC_005296.1.
DR AlphaFoldDB; Q6N1Z4; -.
DR SMR; Q6N1Z4; -.
DR STRING; 258594.RPA4258; -.
DR EnsemblBacteria; CAE29699; CAE29699; RPA4258.
DR GeneID; 66895384; -.
DR KEGG; rpa:RPA4258; -.
DR eggNOG; COG1005; Bacteria.
DR HOGENOM; CLU_015134_0_1_5; -.
DR OMA; FTWVERR; -.
DR PhylomeDB; Q6N1Z4; -.
DR BioCyc; RPAL258594:TX73_RS21715-MON; -.
DR Proteomes; UP000001426; Chromosome.
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:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR HAMAP; MF_01350; NDH1_NuoH; 1.
DR InterPro; IPR001694; NADH_UbQ_OxRdtase_su1/FPO.
DR InterPro; IPR018086; NADH_UbQ_OxRdtase_su1_CS.
DR PANTHER; PTHR11432; PTHR11432; 1.
DR Pfam; PF00146; NADHdh; 1.
DR PROSITE; PS00668; COMPLEX1_ND1_2; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Membrane; NAD; Quinone;
KW Reference proteome; Translocase; Transmembrane; Transmembrane helix;
KW Ubiquinone.
FT CHAIN 1..319
FT /note="NADH-quinone oxidoreductase subunit H 2"
FT /id="PRO_0000244943"
FT TRANSMEM 1..21
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 77..97
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 107..127
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 147..167
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 179..199
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 214..234
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 238..258
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 262..282
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
FT TRANSMEM 293..313
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01350"
SQ SEQUENCE 319 AA; 34127 MW; 7A25E2BFAC20EC1A CRC64;
MIGMIITATI SVALIMVLLV LAGTFTWVER RLLGFVQERY GPNRVGPFGS LQWVADTVKI
LTKEDRPPPG ADKLLYILAP AVAATPVLAG FGVVAIGDGW ALSSVDVGLL FLLGMLGLTA
YAAVLGAWAS NNRFSLLGGM RAAAQMLAYE VFLGLSLMGV VMIAGSFSMA EIVEAQRGVW
FVVLQPLGMA LFTIAGIAAA HRLPFDLPES ENDLIAGFIT EYTGMSFGLF FLGEYLAVLL
VSALAVTLFF GGWLGPWLPG PVWFGLKTAV IAVAFVWIRA TLPRPRYDQL LSFAWKVALP
LSLLNLMLTG IVVVARSAS
