ID   REX_BACAH               Reviewed;         209 AA.
AC   A0R8W1;
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=BALH_0248;
OS   Bacillus thuringiensis (strain Al Hakam).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=412694;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Al Hakam;
RX   PubMed=17337577; DOI=10.1128/jb.00241-07;
RA   Challacombe J.F., Altherr M.R., Xie G., Bhotika S.S., Brown N., Bruce D.,
RA   Campbell C.S., Campbell M.L., Chen J., Chertkov O., Cleland C.,
RA   Dimitrijevic M., Doggett N.A., Fawcett J.J., Glavina T., Goodwin L.A.,
RA   Green L.D., Han C.S., Hill K.K., Hitchcock P., Jackson P.J., Keim P.,
RA   Kewalramani A.R., Longmire J., Lucas S., Malfatti S., Martinez D.,
RA   McMurry K., Meincke L.J., Misra M., Moseman B.L., Mundt M., Munk A.C.,
RA   Okinaka R.T., Parson-Quintana B., Reilly L.P., Richardson P.,
RA   Robinson D.L., Saunders E., Tapia R., Tesmer J.G., Thayer N.,
RA   Thompson L.S., Tice H., Ticknor L.O., Wills P.L., Gilna P., Brettin T.S.;
RT   "The complete genome sequence of Bacillus thuringiensis Al Hakam.";
RL   J. Bacteriol. 189:3680-3681(2007).
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; CP000485; ABK83654.1; -; Genomic_DNA.
DR   RefSeq; WP_000437706.1; NC_008600.1.
DR   AlphaFoldDB; A0R8W1; -.
DR   SMR; A0R8W1; -.
DR   EnsemblBacteria; ABK83654; ABK83654; BALH_0248.
DR   KEGG; btl:BALH_0248; -.
DR   HOGENOM; CLU_061534_1_1_9; -.
DR   OMA; HEQRKAG; -.
DR   Proteomes; UP000000761; 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..209
FT                   /note="Redox-sensing transcriptional repressor Rex"
FT                   /id="PRO_1000065384"
FT   DNA_BIND        16..55
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01131"
FT   BINDING         90..95
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01131"
SQ   SEQUENCE   209 AA;  23503 MW;  38F707606C59B8C8 CRC64;
     MEQQKIPQAT AKRLPLYYRF IQNLSLSGKQ RVSSAELSEA VKVDSATIRR DFSYFGALGK
     KGYGYNVNYL LSFFRETLDQ DDITRVALIG VGNLGTAFLH YNFTKNNNTK IEMAFDVSEE
     KVGTEIGGIP VYHLDELEER LSTDIQVAIL TVPATVAQSV ADRLAETNVH GILNFTPARL
     NVSESIRIHH IDLAVELQTL VYFLKNYPQ