NUON2_HYDS0
ID NUON2_HYDS0 Reviewed; 464 AA.
AC B4U8J0;
DT 09-FEB-2010, integrated into UniProtKB/Swiss-Prot.
DT 23-SEP-2008, sequence version 1.
DT 25-MAY-2022, entry version 68.
DE RecName: Full=NADH-quinone oxidoreductase subunit N 2 {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 2 {ECO:0000255|HAMAP-Rule:MF_00445};
DE AltName: Full=NDH-1 subunit N 2 {ECO:0000255|HAMAP-Rule:MF_00445};
GN Name=nuoN2 {ECO:0000255|HAMAP-Rule:MF_00445};
GN OrderedLocusNames=HY04AAS1_0764;
OS Hydrogenobaculum sp. (strain Y04AAS1).
OC Bacteria; Aquificae; Aquificales; Aquificaceae; Hydrogenobaculum;
OC unclassified Hydrogenobaculum.
OX NCBI_TaxID=380749;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Y04AAS1;
RX PubMed=19136599; DOI=10.1128/jb.01645-08;
RA Reysenbach A.-L., Hamamura N., Podar M., Griffiths E., Ferreira S.,
RA Hochstein R., Heidelberg J., Johnson J., Mead D., Pohorille A.,
RA Sarmiento M., Schweighofer K., Seshadri R., Voytek M.A.;
RT "Complete and draft genome sequences of six members of the Aquificales.";
RL J. Bacteriol. 191:1992-1993(2009).
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; CP001130; ACG57451.1; -; Genomic_DNA.
DR RefSeq; WP_012513807.1; NC_011126.1.
DR AlphaFoldDB; B4U8J0; -.
DR SMR; B4U8J0; -.
DR STRING; 380749.HY04AAS1_0764; -.
DR EnsemblBacteria; ACG57451; ACG57451; HY04AAS1_0764.
DR KEGG; hya:HY04AAS1_0764; -.
DR eggNOG; COG1007; Bacteria.
DR HOGENOM; CLU_007100_1_4_0; -.
DR OMA; FYIRVIV; -.
DR OrthoDB; 1664448at2; -.
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: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 Pfam; PF00361; Proton_antipo_M; 1.
DR TIGRFAMs; TIGR01770; NDH_I_N; 1.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Membrane; NAD; Quinone; Translocase;
KW Transmembrane; Transmembrane helix; Transport; Ubiquinone.
FT CHAIN 1..464
FT /note="NADH-quinone oxidoreductase subunit N 2"
FT /id="PRO_0000391166"
FT TRANSMEM 12..32
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 33..53
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 62..82
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 93..113
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 117..137
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 152..172
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 189..209
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 227..247
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 254..274
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 282..304
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 310..330
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 351..371
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 400..420
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
FT TRANSMEM 434..454
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00445"
SQ SEQUENCE 464 AA; 51316 MW; E663BAA7D658A48E CRC64;
MKALYPDIIT TVGIIFLIIL ELFLPSFDLI GFLGFLISFI SGVLAIKYSL AGYRFNEWLL
DINAFSLLLK GVMYILTSFV IFSSVSFFKS KKTFVENVYT FLLISLGLSI MVSSKNLAVI
LAGLELASIS MYISVGMLRD DYISKEASFK YLVLGSMTTA FFGIGSAFYI GATSHLDIIS
VSVNHNTAFA LASLFLFVAF ALKVSAAPFH FWTPDAYEGA PTSNTAFIST VPKIGFYAVL
FLLASYIFPV TNNFSYIVGI VGVISMFWGN LVAYAQNSAK RMLAYSSIGH AGYFLIGFSR
YNPLSVSSTI FYVIVYAFAT AGAFLVLSIL EKNQSWTHDM SNYRALYKRS PFLATALALF
LFALIGIPPF ATFVGKLGIF LGLVNSNAWF FAILFVIGSI IAAGYYLKLI VYMFFKEPAT
KDNMSLSLNL FDTIGISAFL IIVFFFGIFP NILFDIILKD MFHG
