ID   REX_CLONN               Reviewed;         210 AA.
AC   A0Q2U4;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN   Name=rex {ECO:0000255|HAMAP-Rule:MF_01131}; OrderedLocusNames=NT01CX_0475;
OS   Clostridium novyi (strain NT).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC   Clostridium.
OX   NCBI_TaxID=386415;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NT;
RX   PubMed=17115055; DOI=10.1038/nbt1256;
RA   Bettegowda C., Huang X., Lin J., Cheong I., Kohli M., Szabo S.A., Zhang X.,
RA   Diaz L.A. Jr., Velculescu V.E., Parmigiani G., Kinzler K.W., Vogelstein B.,
RA   Zhou S.;
RT   "The genome and transcriptomes of the anti-tumor agent Clostridium novyi-
RT   NT.";
RL   Nat. Biotechnol. 24:1573-1580(2006).
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}.
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DR   EMBL; CP000382; ABK62473.1; -; Genomic_DNA.
DR   RefSeq; WP_011722928.1; NC_008593.1.
DR   AlphaFoldDB; A0Q2U4; -.
DR   SMR; A0Q2U4; -.
DR   STRING; 386415.NT01CX_0475; -.
DR   EnsemblBacteria; ABK62473; ABK62473; NT01CX_0475.
DR   KEGG; cno:NT01CX_0475; -.
DR   eggNOG; COG2344; Bacteria.
DR   HOGENOM; CLU_061534_1_0_9; -.
DR   OMA; SQVRQDF; -.
DR   OrthoDB; 1872374at2; -.
DR   Proteomes; UP000008220; 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; Reference proteome; Repressor; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..210
FT                   /note="Redox-sensing transcriptional repressor Rex"
FT                   /id="PRO_1000065397"
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;  23745 MW;  C520C2F01C1DDB18 CRC64;
     MEKKRNISMA VIRRLPKYYR YLAELMDNDV DRISSKELSE KIGFTASQIR QDLNNFGDFG
     QQGYGYNVKD LYNEIRSILG LDENYNIAII GAGNIGQAIA NYTNFDKMGF NLKGIFDVNP
     KLLGLKIRDV EIRDIDQLES FLQEEKIHIG VICVTKSNAQ DVCNTLIKNG VKGIWNFAPI
     DLNGADNVVI ENVHLSESLL TLTYLLNGFN