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NSRR_SHIF8
ID   NSRR_SHIF8              Reviewed;         141 AA.
AC   Q0SXA4;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-SEP-2006, sequence version 1.
DT   03-AUG-2022, entry version 97.
DE   RecName: Full=HTH-type transcriptional repressor NsrR {ECO:0000255|HAMAP-Rule:MF_01177};
GN   Name=nsrR {ECO:0000255|HAMAP-Rule:MF_01177}; OrderedLocusNames=SFV_4336;
OS   Shigella flexneri serotype 5b (strain 8401).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=373384;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=8401;
RX   PubMed=16822325; DOI=10.1186/1471-2164-7-173;
RA   Nie H., Yang F., Zhang X., Yang J., Chen L., Wang J., Xiong Z., Peng J.,
RA   Sun L., Dong J., Xue Y., Xu X., Chen S., Yao Z., Shen Y., Jin Q.;
RT   "Complete genome sequence of Shigella flexneri 5b and comparison with
RT   Shigella flexneri 2a.";
RL   BMC Genomics 7:173-173(2006).
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; CP000266; ABF06311.1; -; Genomic_DNA.
DR   RefSeq; WP_001177639.1; NC_008258.1.
DR   AlphaFoldDB; Q0SXA4; -.
DR   SMR; Q0SXA4; -.
DR   EnsemblBacteria; ABF06311; ABF06311; SFV_4336.
DR   GeneID; 67414796; -.
DR   KEGG; sfv:SFV_4336; -.
DR   HOGENOM; CLU_107144_2_1_6; -.
DR   OMA; AQEAFYA; -.
DR   BioCyc; SFLE373384:SFV_RS23865-MON; -.
DR   Proteomes; UP000000659; 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 transcription, DNA-templated; IEA:InterPro.
DR   Gene3D; 1.10.10.10; -; 1.
DR   HAMAP; MF_01177; HTH_type_NsrR; 1.
DR   InterPro; IPR030489; TR_Rrf2-type_CS.
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   PANTHER; PTHR33221; PTHR33221; 1.
DR   Pfam; PF02082; Rrf2; 1.
DR   SUPFAM; SSF46785; SSF46785; 1.
DR   TIGRFAMs; TIGR00738; rrf2_super; 1.
DR   PROSITE; PS01332; HTH_RRF2_1; 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..141
FT                   /note="HTH-type transcriptional repressor NsrR"
FT                   /id="PRO_1000085438"
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   141 AA;  15593 MW;  6A783840023134D7 CRC64;
     MQLTSFTDYG LRALIYMASL PEGRMTSISE VTDVYGVSRN HMVKIINQLS RAGYVTAVRG
     KNGGIRLGKP ASAIRIGDVV RELEPLSLVN CSSEFCHITP ACRLKQALSK AVQSFLTELD
     NYTLADLVEE NQPLYKLLLV E
 
 
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