ID NUON_HELHP Reviewed; 492 AA.
AC Q7VFT5;
DT 09-FEB-2010, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2003, sequence version 1.
DT 27-MAR-2024, entry version 108.
DE RecName: Full=NADH-quinone oxidoreductase subunit N {ECO:0000255|HAMAP-Rule:MF_00445};
DE EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_00445};
DE AltName: Full=NADH dehydrogenase I subunit N {ECO:0000255|HAMAP-Rule:MF_00445};
DE AltName: Full=NDH-1 subunit N {ECO:0000255|HAMAP-Rule:MF_00445};
GN Name=nuoN {ECO:0000255|HAMAP-Rule:MF_00445}; OrderedLocusNames=HH_1590;
OS Helicobacter hepaticus (strain ATCC 51449 / 3B1).
OC Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC Helicobacteraceae; Helicobacter.
OX NCBI_TaxID=235279;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51449 / 3B1;
RX PubMed=12810954; DOI=10.1073/pnas.1332093100;
RA Suerbaum S., Josenhans C., Sterzenbach T., Drescher B., Brandt P., Bell M.,
RA Droege M., Fartmann B., Fischer H.-P., Ge Z., Hoerster A., Holland R.,
RA Klein K., Koenig J., Macko L., Mendz G.L., Nyakatura G., Schauer D.B.,
RA Shen Z., Weber J., Frosch M., Fox J.G.;
RT "The complete genome sequence of the carcinogenic bacterium Helicobacter
RT hepaticus.";
RL Proc. Natl. Acad. Sci. U.S.A. 100:7901-7906(2003).
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:0000255|HAMAP-Rule:MF_00445}.
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_00445};
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_00445}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_00445}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00445}.
CC -!- SIMILARITY: Belongs to the complex I subunit 2 family.
CC {ECO:0000255|HAMAP-Rule:MF_00445}.
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DR EMBL; AE017125; AAP78187.1; -; Genomic_DNA.
DR RefSeq; WP_011116430.1; NC_004917.1.
DR AlphaFoldDB; Q7VFT5; -.
DR SMR; Q7VFT5; -.
DR STRING; 235279.HH_1590; -.
DR GeneID; 82136112; -.
DR KEGG; hhe:HH_1590; -.
DR eggNOG; COG1007; Bacteria.
DR HOGENOM; CLU_007100_1_4_7; -.
DR OrthoDB; 9768329at2; -.
DR Proteomes; UP000002495; 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 GO; GO:0042773; P:ATP synthesis coupled electron transport; IEA:InterPro.
DR HAMAP; MF_00445; NDH1_NuoN_1; 1.
DR InterPro; IPR010096; NADH-Q_OxRdtase_suN/2.
DR InterPro; IPR001750; ND/Mrp_mem.
DR NCBIfam; TIGR01770; NDH_I_N; 1.
DR PANTHER; PTHR22773; NADH DEHYDROGENASE; 1.
DR PANTHER; PTHR22773:SF41; NADH-UBIQUINONE OXIDOREDUCTASE CHAIN 2; 1.
DR Pfam; PF00361; Proton_antipo_M; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Membrane; NAD; Quinone;
KW Reference proteome; Translocase; Transmembrane; Transmembrane helix;
KW Transport; Ubiquinone.
FT CHAIN 1..492
FT /note="NADH-quinone oxidoreductase subunit N"
FT /id="PRO_0000391160"
FT TRANSMEM 16..36
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 44..64
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 81..101
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 111..131
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 134..154
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 168..188
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 210..230
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 244..264
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 276..296
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 306..326
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 332..352
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 382..402
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 423..443
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 463..483
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
SQ SEQUENCE 492 AA; 54788 MW; 890595D33A91D980 CRC64;
MPESMSFSLN QLNLQLLIPM CISLFGGIIL LGVGVFNKTK SRDLYITISM LFVVLNLGFL
FLEGNPIRQF GFFNLLLVDG ISLLTQIIML LATFVLLLFF MNQNNLPETQ GAEFYALLLF
SIAGFAFMAS SQNLILILLG LETASLCLYA LIALHNQKSA FEASIKYFIM GALATTFYAF
GAMLLYAATG SVDIISIATF LHQQSYQPSI LVFAGFVFLL CALGFKVTLV PFHSWGPDVY
EGSNALLAAF IAIVPKIVTF AVIIRIFSVF IDSHSAFVEY TLYVIVVLTM TIPNLIALTQ
KDVKRMLAYS SISHSGFVLA AVLINTPQSH SVIFFYWFLF LFANIGAFGI LWLSVDCKKN
YQTQISHPFE KFSGMIKTNP TLAILLTLFM FALAGIPPFC VFWGKMYLMQ SAISANYTIL
ALIMAINSII AGFYYLKLVI YIFAKEPYEI KDSQSSLELS SKFALSITAF VSVACLFMVQ
NLLEIIEKYI LK
//
