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Database: UniProt
Entry: Q746T4
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ID   NUOI2_GEOSL             Reviewed;         176 AA.
AC   Q746T4;
DT   11-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   16-JAN-2019, entry version 103.
DE   RecName: Full=NADH-quinone oxidoreductase subunit I 2 {ECO:0000255|HAMAP-Rule:MF_01351};
DE            EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01351};
DE   AltName: Full=NADH dehydrogenase I subunit I 2 {ECO:0000255|HAMAP-Rule:MF_01351};
DE   AltName: Full=NDH-1 subunit I 2 {ECO:0000255|HAMAP-Rule:MF_01351};
GN   Name=nuoI2 {ECO:0000255|HAMAP-Rule:MF_01351};
GN   OrderedLocusNames=GSU3434;
OS   Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC   Geobacteraceae; Geobacter.
OX   NCBI_TaxID=243231;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51573 / DSM 12127 / PCA;
RX   PubMed=14671304; DOI=10.1126/science.1088727;
RA   Methe B.A., Nelson K.E., Eisen J.A., Paulsen I.T., Nelson W.C.,
RA   Heidelberg J.F., Wu D., Wu M., Ward N.L., Beanan M.J., Dodson R.J.,
RA   Madupu R., Brinkac L.M., Daugherty S.C., DeBoy R.T., Durkin A.S.,
RA   Gwinn M.L., Kolonay J.F., Sullivan S.A., Haft D.H., Selengut J.,
RA   Davidsen T.M., Zafar N., White O., Tran B., Romero C., Forberger H.A.,
RA   Weidman J.F., Khouri H.M., Feldblyum T.V., Utterback T.R.,
RA   Van Aken S.E., Lovley D.R., Fraser C.M.;
RT   "Genome of Geobacter sulfurreducens: metal reduction in subsurface
RT   environments.";
RL   Science 302:1967-1969(2003).
CC   -!- FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-
CC       sulfur (Fe-S) centers, to quinones in the respiratory chain. The
CC       immediate electron acceptor for the enzyme in this species is
CC       believed to be ubiquinone. Couples the redox reaction to proton
CC       translocation (for every two electrons transferred, four hydrogen
CC       ions are translocated across the cytoplasmic membrane), and thus
CC       conserves the redox energy in a proton gradient.
CC       {ECO:0000255|HAMAP-Rule:MF_01351}.
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,
CC         ChEBI:CHEBI:24646, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC         ChEBI:CHEBI:132124; Evidence={ECO:0000255|HAMAP-Rule:MF_01351};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01351};
CC       Note=Binds 2 [4Fe-4S] clusters per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01351};
CC   -!- SUBUNIT: NDH-1 is composed of 14 different subunits. Subunits
CC       NuoA, H, J, K, L, M, N constitute the membrane sector of the
CC       complex. {ECO:0000255|HAMAP-Rule:MF_01351}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_01351}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_01351}.
CC   -!- SIMILARITY: Belongs to the complex I 23 kDa subunit family.
CC       {ECO:0000255|HAMAP-Rule:MF_01351}.
DR   EMBL; AE017180; AAR36824.1; -; Genomic_DNA.
DR   RefSeq; NP_954474.1; NC_002939.5.
DR   RefSeq; WP_010944044.1; NC_002939.5.
DR   ProteinModelPortal; Q746T4; -.
DR   SMR; Q746T4; -.
DR   STRING; 243231.GSU3434; -.
DR   TCDB; 3.D.1.5.1; the h(+) or na(+)-translocating nadh dehydrogenase (ndh) family.
DR   EnsemblBacteria; AAR36824; AAR36824; GSU3434.
DR   GeneID; 2686858; -.
DR   KEGG; gsu:GSU3434; -.
DR   PATRIC; fig|243231.5.peg.3456; -.
DR   eggNOG; ENOG4105P3U; Bacteria.
DR   eggNOG; COG1143; LUCA.
DR   HOGENOM; HOG000228291; -.
DR   InParanoid; Q746T4; -.
DR   KO; K00338; -.
DR   OMA; EGEIKCV; -.
DR   BioCyc; GSUL243231:G1G0I-3677-MONOMER; -.
DR   Proteomes; UP000000577; Chromosome.
DR   GO; GO:0045272; C:plasma membrane respiratory chain complex I; IBA:GO_Central.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0050136; F:NADH dehydrogenase (quinone) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   GO; GO:0009060; P:aerobic respiration; IBA:GO_Central.
DR   HAMAP; MF_01351; NDH1_NuoI; 1.
DR   InterPro; IPR017896; 4Fe4S_Fe-S-bd.
DR   InterPro; IPR017900; 4Fe4S_Fe_S_CS.
DR   InterPro; IPR010226; NADH_quinone_OxRdtase_chainI.
DR   PANTHER; PTHR10849; PTHR10849; 1.
DR   Pfam; PF12838; Fer4_7; 1.
DR   TIGRFAMs; TIGR01971; NuoI; 1.
DR   PROSITE; PS00198; 4FE4S_FER_1; 2.
DR   PROSITE; PS51379; 4FE4S_FER_2; 2.
PE   3: Inferred from homology;
KW   4Fe-4S; Cell inner membrane; Cell membrane; Complete proteome; Iron;
KW   Iron-sulfur; Membrane; Metal-binding; NAD; Quinone;
KW   Reference proteome; Repeat; Translocase; Ubiquinone.
FT   CHAIN         1    176       NADH-quinone oxidoreductase subunit I 2.
FT                                /FTId=PRO_0000245710.
FT   DOMAIN       45     77       4Fe-4S ferredoxin-type 1.
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   DOMAIN       87    116       4Fe-4S ferredoxin-type 2.
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL        57     57       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL        60     60       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL        63     63       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL        67     67       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL        96     96       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL        99     99       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL       102    102       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
FT   METAL       106    106       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01351}.
SQ   SEQUENCE   176 AA;  19843 MW;  002C66613B83B96C CRC64;
     MPILTDFKAI ATGLFVTWKH IFRRPVTVEY PEVKRTPAPR YRARIVLTRD PDGGERCVAC
     YLCSAACPVD CISMEAAEGE EGRRYARWFR INFSRCIFCG LCAEACPTLA IQMTPDYEIC
     ERDIMELVYE KEDLLIDGCG KDAGYNFYRH AGIGVAQPRG AGECEEEPVD VRGLMP
//
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