ID D6JGD1_ECOLX Unreviewed; 133 AA.
AC D6JGD1;
DT 13-JUL-2010, integrated into UniProtKB/TrEMBL.
DT 13-JUL-2010, sequence version 1.
DT 24-JAN-2024, entry version 65.
DE RecName: Full=Nickel-responsive regulator {ECO:0000256|ARBA:ARBA00016818, ECO:0000256|HAMAP-Rule:MF_00476};
GN Name=nikR {ECO:0000256|HAMAP-Rule:MF_00476};
GN ORFNames=ECEG_03969 {ECO:0000313|EMBL:EFF11042.2};
OS Escherichia coli B354.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=550677 {ECO:0000313|EMBL:EFF11042.2, ECO:0000313|Proteomes:UP000004683};
RN [1] {ECO:0000313|EMBL:EFF11042.2, ECO:0000313|Proteomes:UP000004683}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B354 {ECO:0000313|EMBL:EFF11042.2,
RC ECO:0000313|Proteomes:UP000004683};
RG The Broad Institute Genome Sequencing Platform;
RG The Broad Institute Genome Sequencing Center for Infectious Disease;
RA Feldgarden M., Gordon D.M., Johnson J.R., Johnston B.D., Young S., Zeng Q.,
RA Koehrsen M., Alvarado L., Berlin A.M., Borenstein D., Chapman S.B.,
RA Chen Z., Engels R., Freedman E., Gellesch M., Goldberg J., Griggs A.,
RA Gujja S., Heilman E.R., Heiman D.I., Hepburn T.A., Howarth C., Jen D.,
RA Larson L., Lewis B., Mehta T., Park D., Pearson M., Richards J.,
RA Roberts A., Saif S., Shea T.D., Shenoy N., Sisk P., Stolte C., Sykes S.N.,
RA Walk T., White J., Yandava C., Haas B., Henn M.R., Nusbaum C., Birren B.;
RT "The Genome Sequence of Escherichia coli B354.";
RL Submitted (JAN-2010) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Transcriptional repressor of the nikABCDE operon. Is active
CC in the presence of excessive concentrations of intracellular nickel.
CC {ECO:0000256|ARBA:ARBA00024723, ECO:0000256|HAMAP-Rule:MF_00476}.
CC -!- COFACTOR:
CC Name=Ni(2+); Xref=ChEBI:CHEBI:49786;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00476};
CC Note=Binds 1 nickel ion per subunit. {ECO:0000256|HAMAP-Rule:MF_00476};
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_00476}.
CC -!- SIMILARITY: Belongs to the transcriptional regulatory CopG/NikR family.
CC {ECO:0000256|ARBA:ARBA00008478, ECO:0000256|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; GG749337; EFF11042.2; -; Genomic_DNA.
DR RefSeq; WP_001190062.1; NZ_GG749337.1.
DR AlphaFoldDB; D6JGD1; -.
DR SMR; D6JGD1; -.
DR GeneID; 83578449; -.
DR Proteomes; UP000004683; Unassembled WGS sequence.
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:0043565; F:sequence-specific DNA binding; IEA:UniProt.
DR GO; GO:0010045; P:response to nickel cation; IEA:InterPro.
DR CDD; cd22231; RHH_NikR_HicB-like; 1.
DR Gene3D; 3.30.70.1150; ACT-like. Chain A, domain 2; 1.
DR Gene3D; 1.10.1220.10; Met repressor-like; 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 NCBIfam; TIGR02793; nikR; 1.
DR PANTHER; PTHR34719; NICKEL-RESPONSIVE REGULATOR; 1.
DR PANTHER; PTHR34719:SF2; NICKEL-RESPONSIVE REGULATOR; 1.
DR Pfam; PF08753; NikR_C; 1.
DR Pfam; PF01402; RHH_1; 1.
DR SUPFAM; SSF55021; ACT-like; 1.
DR SUPFAM; SSF47598; Ribbon-helix-helix; 1.
PE 3: Inferred from homology;
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_00476};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00476};
KW Nickel {ECO:0000256|ARBA:ARBA00022596, ECO:0000256|HAMAP-Rule:MF_00476};
KW Repressor {ECO:0000256|ARBA:ARBA00022491, ECO:0000256|HAMAP-Rule:MF_00476};
KW Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW Rule:MF_00476};
KW Transcription regulation {ECO:0000256|ARBA:ARBA00023015, ECO:0000256|HAMAP-
KW Rule:MF_00476}.
FT DOMAIN 3..42
FT /note="Ribbon-helix-helix protein CopG"
FT /evidence="ECO:0000259|Pfam:PF01402"
FT DOMAIN 54..127
FT /note="Transcription factor NikR nickel binding C-terminal"
FT /evidence="ECO:0000259|Pfam:PF08753"
FT BINDING 76
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00476"
FT BINDING 87
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00476"
FT BINDING 89
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00476"
FT BINDING 95
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00476"
SQ SEQUENCE 133 AA; 15094 MW; 9A9E9F838D3FFEF1 CRC64;
MQRVTITLDD DLLETLDSLS QRRGYNNRSE AIRDILRSAL AQEATQQHGT QGFAVLSYVY
EHEKRDLASR IVSTQHHHHD LSVATLHVHI NHDDCLEIAV LKGDMGDVQH FADDVIAQRG
VRHGHLQCLP KED
//
