ID NSRR_PROMH Reviewed; 142 AA.
AC B4F272;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 23-SEP-2008, sequence version 1.
DT 27-MAR-2024, entry version 93.
DE RecName: Full=HTH-type transcriptional repressor NsrR {ECO:0000255|HAMAP-Rule:MF_01177};
GN Name=nsrR {ECO:0000255|HAMAP-Rule:MF_01177}; OrderedLocusNames=PMI3371;
OS Proteus mirabilis (strain HI4320).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Morganellaceae; Proteus.
OX NCBI_TaxID=529507;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HI4320;
RX PubMed=18375554; DOI=10.1128/jb.01981-07;
RA Pearson M.M., Sebaihia M., Churcher C., Quail M.A., Seshasayee A.S.,
RA Luscombe N.M., Abdellah Z., Arrosmith C., Atkin B., Chillingworth T.,
RA Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA Rabbinowitsch E., Walker D., Whithead S., Thomson N.R., Rather P.N.,
RA Parkhill J., Mobley H.L.T.;
RT "Complete genome sequence of uropathogenic Proteus mirabilis, a master of
RT both adherence and motility.";
RL J. Bacteriol. 190:4027-4037(2008).
CC -!- FUNCTION: Nitric oxide-sensitive repressor of genes involved in
CC protecting the cell against nitrosative stress. May require iron for
CC activity. {ECO:0000255|HAMAP-Rule:MF_01177}.
CC -!- COFACTOR:
CC Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01177};
CC Note=Binds 1 [2Fe-2S] cluster per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_01177};
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DR EMBL; AM942759; CAR46611.1; -; Genomic_DNA.
DR RefSeq; WP_004249627.1; NC_010554.1.
DR AlphaFoldDB; B4F272; -.
DR SMR; B4F272; -.
DR EnsemblBacteria; CAR46611; CAR46611; PMI3371.
DR GeneID; 6801969; -.
DR KEGG; pmr:PMI3371; -.
DR eggNOG; COG1959; Bacteria.
DR HOGENOM; CLU_107144_2_0_6; -.
DR Proteomes; UP000008319; Chromosome.
DR GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003690; F:double-stranded DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0045892; P:negative regulation of DNA-templated transcription; IEA:InterPro.
DR Gene3D; 1.10.10.10; Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain; 1.
DR HAMAP; MF_01177; HTH_type_NsrR; 1.
DR InterPro; IPR000944; Tscrpt_reg_Rrf2.
DR InterPro; IPR023761; Tscrpt_rep_HTH_NsrR.
DR InterPro; IPR036388; WH-like_DNA-bd_sf.
DR InterPro; IPR036390; WH_DNA-bd_sf.
DR NCBIfam; TIGR00738; rrf2_super; 1.
DR PANTHER; PTHR33221:SF4; HTH-TYPE TRANSCRIPTIONAL REPRESSOR NSRR; 1.
DR PANTHER; PTHR33221; WINGED HELIX-TURN-HELIX TRANSCRIPTIONAL REGULATOR, RRF2 FAMILY; 1.
DR Pfam; PF02082; Rrf2; 1.
DR SUPFAM; SSF46785; Winged helix' DNA-binding domain; 1.
DR PROSITE; PS51197; HTH_RRF2_2; 1.
PE 3: Inferred from homology;
KW 2Fe-2S; DNA-binding; Iron; Iron-sulfur; Metal-binding; Repressor;
KW Transcription; Transcription regulation.
FT CHAIN 1..142
FT /note="HTH-type transcriptional repressor NsrR"
FT /id="PRO_1000138125"
FT DOMAIN 2..129
FT /note="HTH rrf2-type"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01177"
FT DNA_BIND 28..51
FT /note="H-T-H motif"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01177"
FT BINDING 91
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01177"
FT BINDING 96
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01177"
FT BINDING 102
FT /ligand="[2Fe-2S] cluster"
FT /ligand_id="ChEBI:CHEBI:190135"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01177"
SQ SEQUENCE 142 AA; 15782 MW; CA05614CD4A7E372 CRC64;
MQLTSFTDYG LRALIYMASL PEGKMTSITE VTQVYGVSRN HMVKIINQLS HMGFVEAIRG
KNGGIRLGKP AADIIVGEVV RALEPLSLVN CSAEFCHITP ACRLKLVLNQ AIEQFLKELD
RHTLAELVEN NSPLYKLLLE DV
//