ID   NUOE_BUCAP              Reviewed;         168 AA.
AC   Q8K9Y4;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 120.
DE   RecName: Full=NADH-quinone oxidoreductase subunit E;
DE            EC=7.1.1.-;
DE   AltName: Full=NADH dehydrogenase I subunit E;
DE   AltName: Full=NDH-1 subunit E;
GN   Name=nuoE; OrderedLocusNames=BUsg_150;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
CC   -!- FUNCTION: NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur
CC       (Fe-S) centers, to quinones in the respiratory chain. Couples the redox
CC       reaction to proton translocation (for every two electrons transferred,
CC       four hydrogen ions are translocated across the cytoplasmic membrane),
CC       and thus conserves the redox energy in a proton gradient (By
CC       similarity). {ECO:0000250}.
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   -!- COFACTOR:
CC       Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135; Evidence={ECO:0000305};
CC       Note=Binds 1 [2Fe-2S] cluster. {ECO:0000305};
CC   -!- SUBUNIT: Composed of 13 different subunits. Subunits NuoCD, E, F, and G
CC       constitute the peripheral sector of the complex (By similarity).
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the complex I 24 kDa subunit family.
CC       {ECO:0000305}.
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DR   EMBL; AE013218; AAM67718.1; -; Genomic_DNA.
DR   RefSeq; WP_011053685.1; NC_004061.1.
DR   AlphaFoldDB; Q8K9Y4; -.
DR   SMR; Q8K9Y4; -.
DR   STRING; 198804.BUsg_150; -.
DR   EnsemblBacteria; AAM67718; AAM67718; BUsg_150.
DR   KEGG; bas:BUsg_150; -.
DR   eggNOG; COG1905; Bacteria.
DR   HOGENOM; CLU_054362_2_0_6; -.
DR   OMA; HIIRYCD; -.
DR   OrthoDB; 1206880at2; -.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0016491; F:oxidoreductase activity; IEA:InterPro.
DR   GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR   CDD; cd03064; TRX_Fd_NuoE; 1.
DR   Gene3D; 1.10.10.1590; -; 1.
DR   InterPro; IPR002023; NuoE-like.
DR   InterPro; IPR042128; NuoE_dom.
DR   InterPro; IPR041921; NuoE_N.
DR   InterPro; IPR036249; Thioredoxin-like_sf.
DR   PIRSF; PIRSF000216; NADH_DH_24kDa; 1.
DR   SUPFAM; SSF52833; SSF52833; 1.
DR   TIGRFAMs; TIGR01958; nuoE_fam; 1.
DR   PROSITE; PS01099; COMPLEX1_24K; 1.
PE   3: Inferred from homology;
KW   2Fe-2S; Iron; Iron-sulfur; Metal-binding; NAD; Quinone; Translocase.
FT   CHAIN           1..168
FT                   /note="NADH-quinone oxidoreductase subunit E"
FT                   /id="PRO_0000118689"
FT   BINDING         94
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255"
FT   BINDING         99
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255"
FT   BINDING         135
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255"
FT   BINDING         139
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   168 AA;  19463 MW;  562745AF0BFF64CA CRC64;
     MDKKKKIKEI STTFTLTTFE INEIEKQKKY YENSRSVSIE ALKIVQKKRG WVCDQAIIEI
     ANILNLNPSE VESVATFYSQ IYRQPVGRNV IRYCDSVVCY LTGYEKIKKF LEDYLFIKIG
     NTTVDGRFTL LPVCCLGNCD KAPTIMINED LYSHLNPDLI PNLLELYK