NUOB_BARBK
ID NUOB_BARBK Reviewed; 193 AA.
AC A1USW8;
DT 26-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT 06-FEB-2007, sequence version 1.
DT 03-AUG-2022, entry version 93.
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};
GN OrderedLocusNames=BARBAKC583_0779;
OS Bartonella bacilliformis (strain ATCC 35685 / NCTC 12138 / KC583).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Bartonellaceae; Bartonella.
OX NCBI_TaxID=360095;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35685 / NCTC 12138 / KC583;
RA Hendrix L., Mohamoud Y., Radune D., Shvartsbeyn A., Daugherty S.,
RA Dodson R., Durkin A.S., Harkins D., Huot H., Kothari S.P., Madupu R.,
RA Li J., Nelson W.C., Shrivastava S., Giglio M.G., Haft D., Selengut J.,
RA Fraser-Ligget C., Seshadri R.;
RL Submitted (DEC-2006) 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. 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_01356}.
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; CP000524; ABM44810.1; -; Genomic_DNA.
DR RefSeq; WP_005767062.1; NC_008783.1.
DR AlphaFoldDB; A1USW8; -.
DR SMR; A1USW8; -.
DR STRING; 360095.BARBAKC583_0779; -.
DR EnsemblBacteria; ABM44810; ABM44810; BARBAKC583_0779.
DR KEGG; bbk:BARBAKC583_0779; -.
DR PATRIC; fig|360095.6.peg.752; -.
DR eggNOG; COG0377; Bacteria.
DR HOGENOM; CLU_055737_7_3_5; -.
DR OMA; AGWVRKS; -.
DR OrthoDB; 1904620at2; -.
DR Proteomes; UP000000643; 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..193
FT /note="NADH-quinone oxidoreductase subunit B"
FT /id="PRO_0000376144"
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; 21269 MW; AC2E1F6039ED2F86 CRC64;
MGLVFNNSTI VAPQAKGIID PNTSKLIGAN DQFFQDMNAE LSDKGFLVTS VDSLITWART
GSLMWMSFGL ACCAVEMMQC SMPHYDNERF GYAPRASPRQ SDVMVVAGTL TNKMAPALRK
VYDQMPEPRY VISMGSCANG GGYYHYSYSV VRGCDRIVPV DIYVPGCPPT AEALLYGILL
LQKKIRRTGS IER
