NUOB_DINSH
ID NUOB_DINSH Reviewed; 177 AA.
AC A8LIT6;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 04-DEC-2007, sequence version 1.
DT 03-AUG-2022, entry version 83.
DE RecName: Full=NADH-quinone oxidoreductase subunit B {ECO:0000255|HAMAP-Rule:MF_01356};
DE EC=7.1.1.- {ECO:0000255|HAMAP-Rule:MF_01356};
DE AltName: Full=NADH dehydrogenase I subunit B {ECO:0000255|HAMAP-Rule:MF_01356};
DE AltName: Full=NDH-1 subunit B {ECO:0000255|HAMAP-Rule:MF_01356};
GN Name=nuoB {ECO:0000255|HAMAP-Rule:MF_01356}; OrderedLocusNames=Dshi_1308;
OS Dinoroseobacter shibae (strain DSM 16493 / NCIMB 14021 / DFL 12).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Dinoroseobacter.
OX NCBI_TaxID=398580;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16493 / NCIMB 14021 / DFL 12;
RX PubMed=19741735; DOI=10.1038/ismej.2009.94;
RA Wagner-Dobler I., Ballhausen B., Berger M., Brinkhoff T., Buchholz I.,
RA Bunk B., Cypionka H., Daniel R., Drepper T., Gerdts G., Hahnke S., Han C.,
RA Jahn D., Kalhoefer D., Kiss H., Klenk H.P., Kyrpides N., Liebl W.,
RA Liesegang H., Meincke L., Pati A., Petersen J., Piekarski T.,
RA Pommerenke C., Pradella S., Pukall R., Rabus R., Stackebrandt E., Thole S.,
RA Thompson L., Tielen P., Tomasch J., von Jan M., Wanphrut N., Wichels A.,
RA Zech H., Simon M.;
RT "The complete genome sequence of the algal symbiont Dinoroseobacter shibae:
RT a hitchhiker's guide to life in the sea.";
RL ISME J. 4:61-77(2010).
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 Evidence={ECO:0000255|HAMAP-Rule:MF_01356};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01356};
CC Note=Binds 1 [4Fe-4S] cluster. {ECO:0000255|HAMAP-Rule:MF_01356};
CC -!- SUBUNIT: NDH-1 is composed of 14 different subunits. Subunits NuoB, C,
CC D, E, F, and G constitute the peripheral sector of the complex.
CC {ECO:0000255|HAMAP-Rule:MF_01356}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC Rule:MF_01356}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_01356}; Cytoplasmic side {ECO:0000255|HAMAP-Rule:MF_01356}.
CC -!- SIMILARITY: Belongs to the complex I 20 kDa subunit family.
CC {ECO:0000255|HAMAP-Rule:MF_01356}.
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DR EMBL; CP000830; ABV93050.1; -; Genomic_DNA.
DR RefSeq; WP_012177980.1; NC_009952.1.
DR AlphaFoldDB; A8LIT6; -.
DR SMR; A8LIT6; -.
DR STRING; 398580.Dshi_1308; -.
DR EnsemblBacteria; ABV93050; ABV93050; Dshi_1308.
DR KEGG; dsh:Dshi_1308; -.
DR eggNOG; COG0377; Bacteria.
DR HOGENOM; CLU_055737_7_0_5; -.
DR OMA; GPYWEHG; -.
DR OrthoDB; 1904620at2; -.
DR Proteomes; UP000006833; Chromosome.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
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:0008137; F:NADH dehydrogenase (ubiquinone) activity; IEA:InterPro.
DR GO; GO:0048038; F:quinone binding; IEA:UniProtKB-KW.
DR HAMAP; MF_01356; NDH1_NuoB; 1.
DR InterPro; IPR006137; NADH_UbQ_OxRdtase-like_20kDa.
DR InterPro; IPR006138; NADH_UQ_OxRdtase_20Kd_su.
DR Pfam; PF01058; Oxidored_q6; 1.
DR TIGRFAMs; TIGR01957; nuoB_fam; 1.
DR PROSITE; PS01150; COMPLEX1_20K; 1.
PE 3: Inferred from homology;
KW 4Fe-4S; Cell inner membrane; Cell membrane; Iron; Iron-sulfur; Membrane;
KW Metal-binding; NAD; Quinone; Reference proteome; Translocase; Transport;
KW Ubiquinone.
FT CHAIN 1..177
FT /note="NADH-quinone oxidoreductase subunit B"
FT /id="PRO_0000358404"
FT BINDING 56
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 57
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 121
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 151
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
SQ SEQUENCE 177 AA; 19583 MW; A4C4FB59A6E4F169 CRC64;
MGVSTAAYDA GPDKEHATQL LNNELQDKGF LLTSTEDIIN WARTGSLHWM TFGLACCAVE
MMHTSMPRYD AERFGIAPRA SPRQSDVMIV AGTLTNKMAP ALRKVYDQMP EPRYVISMGS
CANGGGYYHY SYSVVRGCDR VVPVDIYVPG CPPTAEALLY GLLQLQRKIR RTGTIVR
