ID   NSRR_SERP5              Reviewed;         141 AA.
AC   A8G8V5;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-NOV-2007, sequence version 1.
DT   03-AUG-2022, entry version 82.
DE   RecName: Full=HTH-type transcriptional repressor NsrR {ECO:0000255|HAMAP-Rule:MF_01177};
GN   Name=nsrR {ECO:0000255|HAMAP-Rule:MF_01177}; OrderedLocusNames=Spro_0437;
OS   Serratia proteamaculans (strain 568).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Yersiniaceae; Serratia.
OX   NCBI_TaxID=399741;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=568;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Taghavi S., Newman L.,
RA   Vangronsveld J., van der Lelie D., Richardson P.;
RT   "Complete sequence of chromosome of Serratia proteamaculans 568.";
RL   Submitted (SEP-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000826; ABV39545.1; -; Genomic_DNA.
DR   RefSeq; WP_012004900.1; NC_009832.1.
DR   AlphaFoldDB; A8G8V5; -.
DR   SMR; A8G8V5; -.
DR   STRING; 399741.Spro_0437; -.
DR   EnsemblBacteria; ABV39545; ABV39545; Spro_0437.
DR   KEGG; spe:Spro_0437; -.
DR   eggNOG; COG1959; Bacteria.
DR   HOGENOM; CLU_107144_2_1_6; -.
DR   OMA; AQEAFYA; -.
DR   OrthoDB; 1765806at2; -.
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; 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; 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_1000085437"
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;  15650 MW;  44C802E27AB43408 CRC64;
     MQLTSFTDYG LRALIYMASL PPDKMTSISE VTEVYGVSRN HMVKIINQLS RVGFVTAVRG
     KNGGIRLGKP AETIRLGDVV RALEPLSLVN CNSTFCHITP ACRLKQVLQQ GVQNFLEELD
     SHTLADMVED NPSLYKLLLV E