NIKR_ECO27
ID NIKR_ECO27 Reviewed; 133 AA.
AC B7UL33;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 03-AUG-2022, entry version 72.
DE RecName: Full=Nickel-responsive regulator {ECO:0000255|HAMAP-Rule:MF_00476};
GN Name=nikR {ECO:0000255|HAMAP-Rule:MF_00476}; OrderedLocusNames=E2348C_3722;
OS Escherichia coli O127:H6 (strain E2348/69 / EPEC).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=574521;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=E2348/69 / EPEC;
RX PubMed=18952797; DOI=10.1128/jb.01238-08;
RA Iguchi A., Thomson N.R., Ogura Y., Saunders D., Ooka T., Henderson I.R.,
RA Harris D., Asadulghani M., Kurokawa K., Dean P., Kenny B., Quail M.A.,
RA Thurston S., Dougan G., Hayashi T., Parkhill J., Frankel G.;
RT "Complete genome sequence and comparative genome analysis of
RT enteropathogenic Escherichia coli O127:H6 strain E2348/69.";
RL J. Bacteriol. 191:347-354(2009).
CC -!- FUNCTION: Transcriptional repressor of the nikABCDE operon. Is active
CC in the presence of excessive concentrations of intracellular nickel.
CC {ECO:0000255|HAMAP-Rule:MF_00476}.
CC -!- COFACTOR:
CC Name=Ni(2+); Xref=ChEBI:CHEBI:49786;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00476};
CC Note=Binds 1 nickel ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00476};
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00476}.
CC -!- SIMILARITY: Belongs to the transcriptional regulatory CopG/NikR family.
CC {ECO:0000255|HAMAP-Rule:MF_00476}.
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; FM180568; CAS11270.1; -; Genomic_DNA.
DR RefSeq; WP_001190063.1; NC_011601.1.
DR AlphaFoldDB; B7UL33; -.
DR SMR; B7UL33; -.
DR EnsemblBacteria; CAS11270; CAS11270; E2348C_3722.
DR KEGG; ecg:E2348C_3722; -.
DR HOGENOM; CLU_113319_1_4_6; -.
DR OMA; AHNCLET; -.
DR Proteomes; UP000008205; Chromosome.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016151; F:nickel cation binding; IEA:UniProtKB-UniRule.
DR GO; GO:0010045; P:response to nickel cation; IEA:InterPro.
DR Gene3D; 1.10.1220.10; -; 1.
DR Gene3D; 3.30.70.1150; -; 1.
DR HAMAP; MF_00476; NikR; 1.
DR InterPro; IPR027271; Acetolactate_synth/TF_NikR_C.
DR InterPro; IPR045865; ACT-like_dom_sf.
DR InterPro; IPR013321; Arc_rbn_hlx_hlx.
DR InterPro; IPR002145; CopG.
DR InterPro; IPR022988; Ni_resp_reg_NikR.
DR InterPro; IPR014160; Nickel_NikR_proteobac.
DR InterPro; IPR010985; Ribbon_hlx_hlx.
DR InterPro; IPR014864; TF_NikR_Ni-bd_C.
DR Pfam; PF08753; NikR_C; 1.
DR Pfam; PF01402; RHH_1; 1.
DR SUPFAM; SSF47598; SSF47598; 1.
DR SUPFAM; SSF55021; SSF55021; 1.
DR TIGRFAMs; TIGR02793; nikR; 1.
PE 3: Inferred from homology;
KW DNA-binding; Metal-binding; Nickel; Repressor; Transcription;
KW Transcription regulation.
FT CHAIN 1..133
FT /note="Nickel-responsive regulator"
FT /id="PRO_1000135551"
FT BINDING 76
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
FT BINDING 87
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
FT BINDING 89
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
FT BINDING 95
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
SQ SEQUENCE 133 AA; 15124 MW; 9A9E9F96CC6BFEF1 CRC64;
MQRVTITLDD DLLETLDSLS QRRGYNNRSE AIRDILRSAL AQEATQQHGT QGFAVLSYVY
EHEKRDLASR IVSTQHHHHD LSVATLHVHI NHDDCLEIAV LKGDMSDVQH FADDVIAQRG
VRHGHLQCLP KED
