NUOB_AKKM8
ID NUOB_AKKM8 Reviewed; 193 AA.
AC B2UPT6;
DT 26-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-2008, sequence version 1.
DT 03-AUG-2022, entry version 79.
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=Amuc_2157;
OS Akkermansia muciniphila (strain ATCC BAA-835 / DSM 22959 / JCM 33894 / BCRC
OS 81048 / CCUG 64013 / CIP 107961 / Muc).
OC Bacteria; Verrucomicrobia; Verrucomicrobiae; Verrucomicrobiales;
OC Akkermansiaceae; Akkermansia.
OX NCBI_TaxID=349741;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-835 / DSM 22959 / JCM 33894 / BCRC 81048 / CCUG 64013 / CIP
RC 107961 / Muc;
RX PubMed=21390229; DOI=10.1371/journal.pone.0016876;
RA van Passel M.W., Kant R., Zoetendal E.G., Plugge C.M., Derrien M.,
RA Malfatti S.A., Chain P.S., Woyke T., Palva A., de Vos W.M., Smidt H.;
RT "The genome of Akkermansia muciniphila, a dedicated intestinal mucin
RT degrader, and its use in exploring intestinal metagenomes.";
RL PLoS ONE 6:E16876-E16876(2011).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP001071; ACD05964.1; -; Genomic_DNA.
DR RefSeq; WP_012421178.1; NC_010655.1.
DR AlphaFoldDB; B2UPT6; -.
DR SMR; B2UPT6; -.
DR STRING; 349741.Amuc_2157; -.
DR PRIDE; B2UPT6; -.
DR EnsemblBacteria; ACD05964; ACD05964; Amuc_2157.
DR GeneID; 60881745; -.
DR KEGG; amu:Amuc_2157; -.
DR eggNOG; COG0377; Bacteria.
DR HOGENOM; CLU_055737_7_3_0; -.
DR OMA; AGWVRKS; -.
DR OrthoDB; 1904620at2; -.
DR BioCyc; AMUC349741:G1GBX-2300-MON; -.
DR Proteomes; UP000001031; 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.
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_0000376116"
FT REGION 172..193
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 49
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 50
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 115
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
FT BINDING 144
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01356"
SQ SEQUENCE 193 AA; 21537 MW; E1CEF5BABAB8A1CB CRC64;
MVTTNEPNIY ETGVLDSNAE GNFVYTTLDA AINWIRKNSL WPMPMGLSCC AIEFMAVACS
RYDLSRFGSE VTRFSPRQAD VMIVAGTVTY KMALAVRRIW DQMPEPKWCI AMGACASTGG
MFRSYSVLQG VDKILPVDVY ISGCPPRPEA ILEALLTLRK KLDTQQPART FFKKEEPREA
NAPVPVNTEM PLE
