NUOB_XANCB
ID NUOB_XANCB Reviewed; 184 AA.
AC B0RR99;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 16-DEC-2008, sequence version 2.
DT 03-AUG-2022, entry version 73.
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=xcc-b100_1634;
OS Xanthomonas campestris pv. campestris (strain B100).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC Xanthomonadaceae; Xanthomonas.
OX NCBI_TaxID=509169;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B100;
RX PubMed=18304669; DOI=10.1016/j.jbiotec.2007.12.013;
RA Vorhoelter F.-J., Schneiker S., Goesmann A., Krause L., Bekel T.,
RA Kaiser O., Linke B., Patschkowski T., Rueckert C., Schmid J., Sidhu V.K.,
RA Sieber V., Tauch A., Watt S.A., Weisshaar B., Becker A., Niehaus K.,
RA Puehler A.;
RT "The genome of Xanthomonas campestris pv. campestris B100 and its use for
RT the reconstruction of metabolic pathways involved in xanthan
RT biosynthesis.";
RL J. Biotechnol. 134:33-45(2008).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=CAP50984.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; AM920689; CAP50984.1; ALT_INIT; Genomic_DNA.
DR AlphaFoldDB; B0RR99; -.
DR SMR; B0RR99; -.
DR KEGG; xca:xcc-b100_1634; -.
DR HOGENOM; CLU_055737_7_3_6; -.
DR Proteomes; UP000001188; 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; Translocase; Transport; Ubiquinone.
FT CHAIN 1..184
FT /note="NADH-quinone oxidoreductase subunit B"
FT /id="PRO_0000358511"
FT BINDING 63
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 64
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 128
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 158
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
SQ SEQUENCE 184 AA; 20428 MW; 348605E4198B2014 CRC64;
MGVIQTLDRL MTNPMPEGRV EDILRPEGEN PLLEKGYVTT SVDALLNWAR TGSMWPMTFG
LACCAVEMMH AGAARLDLDR YGVVFRPSPR QSDVMIVAGT LVNKMAPALR KVYDQMPDPK
WVISMGSCAN GGGYYHYSYS VVRGCDRIVP VDIYVPGCPP TAEALVYGIL QLQKKIWRTQ
TIAR
