ID   REX_GEOSW               Reviewed;         215 AA.
AC   C5D4E7;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   28-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 70.
DE   RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN   Name=rex {ECO:0000255|HAMAP-Rule:MF_01131}; OrderedLocusNames=GWCH70_0224;
OS   Geobacillus sp. (strain WCH70).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Geobacillus;
OC   unclassified Geobacillus.
OX   NCBI_TaxID=471223;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=WCH70;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C.,
RA   Han C., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N.,
RA   Brumm P., Mead D.A., Richardson P.;
RT   "Complete sequence of chromosome of Geopacillus sp. WCH70.";
RL   Submitted (JUN-2009) 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}.
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DR   EMBL; CP001638; ACS23155.1; -; Genomic_DNA.
DR   RefSeq; WP_012748975.1; NC_012793.1.
DR   AlphaFoldDB; C5D4E7; -.
DR   SMR; C5D4E7; -.
DR   STRING; 471223.GWCH70_0224; -.
DR   EnsemblBacteria; ACS23155; ACS23155; GWCH70_0224.
DR   KEGG; gwc:GWCH70_0224; -.
DR   eggNOG; COG2344; Bacteria.
DR   HOGENOM; CLU_061534_1_1_9; -.
DR   OMA; HEQRKAG; -.
DR   OrthoDB; 1872374at2; -.
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..215
FT                   /note="Redox-sensing transcriptional repressor Rex"
FT                   /id="PRO_1000213638"
FT   DNA_BIND        18..57
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01131"
FT   BINDING         92..97
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01131"
SQ   SEQUENCE   215 AA;  24255 MW;  3D17FF6C5EC106BB CRC64;
     MNNEQPKIPQ ATAKRLPLYY RFLKNLHASG KQRVSSAELS EAVKVDPATI RRDFSYFGAL
     GKKGYGYNVN YLLSFFRKTL DQDEITEVAL FGVGNLGTAF LNYNFTKNNN TKIVMAFDVD
     QKKVGKEVGG VPVYHLDELE NRLHEGIPVA ILTVPAPAAQ WITDRLVQKG IKGILNFTPA
     RLNVPKHIRV HHIDLAVELQ SLVYFLTVDE HFSLQ