ID   REX_CLOBB               Reviewed;         210 AA.
AC   B2TIV9;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN   Name=rex {ECO:0000255|HAMAP-Rule:MF_01131}; OrderedLocusNames=CLL_A0372;
OS   Clostridium botulinum (strain Eklund 17B / Type B).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC   Clostridium.
OX   NCBI_TaxID=935198;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Eklund 17B / Type B;
RA   Brinkac L.M., Brown J.L., Bruce D., Detter C., Munk C., Smith L.A.,
RA   Smith T.J., Sutton G., Brettin T.S.;
RT   "Complete sequence of Clostridium botulinum strain Eklund.";
RL   Submitted (APR-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Modulates transcription in response to changes in cellular
CC       NADH/NAD(+) redox state. {ECO:0000255|HAMAP-Rule:MF_01131}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01131}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01131}.
CC   -!- SIMILARITY: Belongs to the transcriptional regulatory Rex family.
CC       {ECO:0000255|HAMAP-Rule:MF_01131}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP001056; ACD24745.1; -; Genomic_DNA.
DR   RefSeq; WP_012425478.1; NC_018648.1.
DR   AlphaFoldDB; B2TIV9; -.
DR   SMR; B2TIV9; -.
DR   EnsemblBacteria; ACD24745; ACD24745; CLL_A0372.
DR   KEGG; cbk:CLL_A0372; -.
DR   PATRIC; fig|935198.13.peg.348; -.
DR   HOGENOM; CLU_061534_1_0_9; -.
DR   OMA; SQVRQDF; -.
DR   OrthoDB; 1872374at2; -.
DR   Proteomes; UP000001195; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0045892; P:negative regulation of transcription, DNA-templated; IEA:InterPro.
DR   GO; GO:0051775; P:response to redox state; IEA:InterPro.
DR   Gene3D; 1.10.10.10; -; 1.
DR   HAMAP; MF_01131; Rex; 1.
DR   InterPro; IPR003781; CoA-bd.
DR   InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR   InterPro; IPR009718; Rex_DNA-bd_C_dom.
DR   InterPro; IPR022876; Tscrpt_rep_Rex.
DR   InterPro; IPR036388; WH-like_DNA-bd_sf.
DR   InterPro; IPR036390; WH_DNA-bd_sf.
DR   PANTHER; PTHR35786; PTHR35786; 1.
DR   Pfam; PF02629; CoA_binding; 1.
DR   Pfam; PF06971; Put_DNA-bind_N; 1.
DR   SMART; SM00881; CoA_binding; 1.
DR   SUPFAM; SSF46785; SSF46785; 1.
DR   SUPFAM; SSF51735; SSF51735; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA-binding; NAD; Repressor; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..210
FT                   /note="Redox-sensing transcriptional repressor Rex"
FT                   /id="PRO_1000137322"
FT   DNA_BIND        17..56
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01131"
FT   BINDING         91..96
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01131"
SQ   SEQUENCE   210 AA;  23577 MW;  A028ECCA90316AE4 CRC64;
     MDKNKNISMA VIKRLPKYHR YLNELMKNDV DRISSKELGE KIGFTASQIR QDLNCFGDFG
     QQGYGYNVKE LYTQINSILG LDKEYNAVLI GAGNIGQAIA NYTRFDKLGI MITAIFDANP
     KLIGIKIRDI EIRDIDELGS FLKSDSVDIG VICVPKKSAQ RVSDELINGG IRGIWNFAPI
     DLAVPKDVKV ENVHLSESVS TLIYQLHQQR