MNTR_OCEIH
ID MNTR_OCEIH Reviewed; 147 AA.
AC Q8EQ23;
DT 28-NOV-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 03-AUG-2022, entry version 115.
DE RecName: Full=HTH-type transcriptional regulator MntR {ECO:0000255|HAMAP-Rule:MF_00732};
DE AltName: Full=Manganese transport regulator {ECO:0000255|HAMAP-Rule:MF_00732};
GN Name=mntR {ECO:0000255|HAMAP-Rule:MF_00732}; OrderedLocusNames=OB1900;
OS Oceanobacillus iheyensis (strain DSM 14371 / CIP 107618 / JCM 11309 / KCTC
OS 3954 / HTE831).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Oceanobacillus.
OX NCBI_TaxID=221109;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 14371 / CIP 107618 / JCM 11309 / KCTC 3954 / HTE831;
RX PubMed=12235376; DOI=10.1093/nar/gkf526;
RA Takami H., Takaki Y., Uchiyama I.;
RT "Genome sequence of Oceanobacillus iheyensis isolated from the Iheya Ridge
RT and its unexpected adaptive capabilities to extreme environments.";
RL Nucleic Acids Res. 30:3927-3935(2002).
CC -!- FUNCTION: Central regulator of manganese homeostasis.
CC {ECO:0000255|HAMAP-Rule:MF_00732}.
CC -!- ACTIVITY REGULATION: DNA binding is strongly activated by Mn(2+).
CC {ECO:0000255|HAMAP-Rule:MF_00732}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00732}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00732}.
CC -!- SIMILARITY: Belongs to the DtxR/MntR family. {ECO:0000255|HAMAP-
CC Rule:MF_00732}.
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DR EMBL; BA000028; BAC13856.1; -; Genomic_DNA.
DR RefSeq; WP_011066297.1; NC_004193.1.
DR AlphaFoldDB; Q8EQ23; -.
DR SMR; Q8EQ23; -.
DR STRING; 221109.22777584; -.
DR EnsemblBacteria; BAC13856; BAC13856; BAC13856.
DR KEGG; oih:OB1900; -.
DR eggNOG; COG1321; Bacteria.
DR HOGENOM; CLU_069532_3_0_9; -.
DR OMA; SWDAIDR; -.
DR OrthoDB; 2047422at2; -.
DR PhylomeDB; Q8EQ23; -.
DR Proteomes; UP000000822; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
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:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046983; F:protein dimerization activity; IEA:InterPro.
DR GO; GO:0030026; P:cellular manganese ion homeostasis; IEA:UniProtKB-UniRule.
DR Gene3D; 1.10.10.10; -; 1.
DR Gene3D; 1.10.60.10; -; 1.
DR HAMAP; MF_00732; HTH_MntR; 1.
DR InterPro; IPR001367; Fe_dep_repressor.
DR InterPro; IPR036421; Fe_dep_repressor_sf.
DR InterPro; IPR022687; HTH_DTXR.
DR InterPro; IPR022897; HTH_tscrpt_reg_MntR.
DR InterPro; IPR022689; Iron_dep_repressor.
DR InterPro; IPR036388; WH-like_DNA-bd_sf.
DR InterPro; IPR036390; WH_DNA-bd_sf.
DR Pfam; PF02742; Fe_dep_repr_C; 1.
DR Pfam; PF01325; Fe_dep_repress; 1.
DR SMART; SM00529; HTH_DTXR; 1.
DR SUPFAM; SSF46785; SSF46785; 1.
DR SUPFAM; SSF47979; SSF47979; 1.
DR PROSITE; PS50944; HTH_DTXR; 1.
PE 3: Inferred from homology;
KW Activator; Cytoplasm; DNA-binding; Manganese; Metal-binding;
KW Reference proteome; Repressor; Transcription; Transcription regulation.
FT CHAIN 1..147
FT /note="HTH-type transcriptional regulator MntR"
FT /id="PRO_0000201122"
FT DOMAIN 1..63
FT /note="HTH dtxR-type"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 8
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 11
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 77
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 99
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 99
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 102
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 102
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
FT BINDING 103
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00732"
SQ SEQUENCE 147 AA; 17101 MW; 7480F5031508D8CE CRC64;
MPTPSMEDYI EIIYNLIESK GYARVSAIAE ALDVHPSSVT KMVQKLDKDQ YLDYEKYRGF
VLTSKGKKIG ERLVFRHELL EEFLEIIGVN DENIYDDVEG IEHHLSWNSI DRIGDLVNYF
KDDDSRVKDL KKVIKESDQQ VNETAEK
