NUOB_BRUC2
ID NUOB_BRUC2 Reviewed; 193 AA.
AC A9MAI0;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 05-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 80.
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=BCAN_A0818;
OS Brucella canis (strain ATCC 23365 / NCTC 10854).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Brucellaceae; Brucella/Ochrobactrum group; Brucella.
OX NCBI_TaxID=483179;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 23365 / NCTC 10854;
RA Setubal J.C., Bowns C., Boyle S., Crasta O.R., Czar M.J., Dharmanolla C.,
RA Gillespie J.J., Kenyon R.W., Lu J., Mane S., Mohapatra S., Nagrani S.,
RA Purkayastha A., Rajasimha H.K., Shallom J.M., Shallom S., Shukla M.,
RA Snyder E.E., Sobral B.W., Wattam A.R., Will R., Williams K., Yoo H.,
RA Bruce D., Detter C., Munk C., Brettin T.S.;
RT "Brucella canis ATCC 23365 whole genome shotgun sequencing project.";
RL Submitted (OCT-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000872; ABX61883.1; -; Genomic_DNA.
DR RefSeq; WP_002967573.1; NC_010103.1.
DR AlphaFoldDB; A9MAI0; -.
DR SMR; A9MAI0; -.
DR EnsemblBacteria; ABX61883; ABX61883; BCAN_A0818.
DR GeneID; 45124237; -.
DR GeneID; 55590515; -.
DR KEGG; bcs:BCAN_A0818; -.
DR HOGENOM; CLU_055737_7_3_5; -.
DR OMA; AGWVRKS; -.
DR PhylomeDB; A9MAI0; -.
DR Proteomes; UP000001385; Chromosome I.
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; Translocase; Transport; Ubiquinone.
FT CHAIN 1..193
FT /note="NADH-quinone oxidoreductase subunit B"
FT /id="PRO_0000358358"
FT REGION 1..23
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 72
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 73
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 137
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 167
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
SQ SEQUENCE 193 AA; 21032 MW; 07E2DF39F0E5DF32 CRC64;
MGLTGTNTTL VAPQPKGILD PRTGKPVGSD DAFFNDLNGE LSDKGFIVTS ADALITWART
GSLMWMTFGL ACCAVEMMHI SMPRYDAERF GIAPRASPRQ SDVMIVAGTL TNKMAPALRK
VYDQMPEPRY VISMGSCANG GGYYHYSYSV VRGCDRVVPV DIYVPGCPPT AEALLYGILL
LQKKIRRTGT IER
