ID   NIKR_METJA              Reviewed;         141 AA.
AC   Q57969;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 116.
DE   RecName: Full=Putative nickel-responsive regulator {ECO:0000255|HAMAP-Rule:MF_00476};
GN   OrderedLocusNames=MJ0549;
OS   Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM
OS   10045 / NBRC 100440) (Methanococcus jannaschii).
OC   Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC   Methanocaldococcaceae; Methanocaldococcus.
OX   NCBI_TaxID=243232;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440;
RX   PubMed=8688087; DOI=10.1126/science.273.5278.1058;
RA   Bult C.J., White O., Olsen G.J., Zhou L., Fleischmann R.D., Sutton G.G.,
RA   Blake J.A., FitzGerald L.M., Clayton R.A., Gocayne J.D., Kerlavage A.R.,
RA   Dougherty B.A., Tomb J.-F., Adams M.D., Reich C.I., Overbeek R.,
RA   Kirkness E.F., Weinstock K.G., Merrick J.M., Glodek A., Scott J.L.,
RA   Geoghagen N.S.M., Weidman J.F., Fuhrmann J.L., Nguyen D., Utterback T.R.,
RA   Kelley J.M., Peterson J.D., Sadow P.W., Hanna M.C., Cotton M.D.,
RA   Roberts K.M., Hurst M.A., Kaine B.P., Borodovsky M., Klenk H.-P.,
RA   Fraser C.M., Smith H.O., Woese C.R., Venter J.C.;
RT   "Complete genome sequence of the methanogenic archaeon, Methanococcus
RT   jannaschii.";
RL   Science 273:1058-1073(1996).
CC   -!- FUNCTION: Transcriptional regulator. {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}.
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DR   EMBL; L77117; AAB98541.1; -; Genomic_DNA.
DR   PIR; E64368; E64368.
DR   RefSeq; WP_010870053.1; NC_000909.1.
DR   AlphaFoldDB; Q57969; -.
DR   SMR; Q57969; -.
DR   STRING; 243232.MJ_0549; -.
DR   EnsemblBacteria; AAB98541; AAB98541; MJ_0549.
DR   GeneID; 8804158; -.
DR   KEGG; mja:MJ_0549; -.
DR   eggNOG; arCOG01008; Archaea.
DR   HOGENOM; CLU_113319_1_2_2; -.
DR   InParanoid; Q57969; -.
DR   OMA; AHNCLET; -.
DR   OrthoDB; 90041at2157; -.
DR   PhylomeDB; Q57969; -.
DR   Proteomes; UP000000805; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IBA:GO_Central.
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:0006355; P:regulation of transcription, DNA-templated; IBA:GO_Central.
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; 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.
PE   3: Inferred from homology;
KW   DNA-binding; Metal-binding; Nickel; Reference proteome; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..141
FT                   /note="Putative nickel-responsive regulator"
FT                   /id="PRO_0000139302"
FT   BINDING         80
FT                   /ligand="Ni(2+)"
FT                   /ligand_id="ChEBI:CHEBI:49786"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
FT   BINDING         91
FT                   /ligand="Ni(2+)"
FT                   /ligand_id="ChEBI:CHEBI:49786"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
FT   BINDING         93
FT                   /ligand="Ni(2+)"
FT                   /ligand_id="ChEBI:CHEBI:49786"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
FT   BINDING         99
FT                   /ligand="Ni(2+)"
FT                   /ligand_id="ChEBI:CHEBI:49786"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00476"
SQ   SEQUENCE   141 AA;  16133 MW;  5BE0C5F09D38B5ED CRC64;
     MTEMDRISIS LPSKLLREFD EIIAERGYAS RSEAIRDAIR DYIIKHKWIH SLEGERAGSI
     SVIYNHHASD VMEKITEIQH NYTDIIVATL HLHLDHDHCL ETILVRGDAK RIRELTDRLT
     ALKGVKQVKL SVMVPGGQIP E