ID   REX_BACLD               Reviewed;         215 AA.
AC   Q65N04; Q62YF1;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2004, sequence version 1.
DT   03-AUG-2022, entry version 112.
DE   RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN   Name=rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN   OrderedLocusNames=BLi00618, BL00847;
OS   Bacillus licheniformis (strain ATCC 14580 / DSM 13 / JCM 2505 / CCUG 7422 /
OS   NBRC 12200 / NCIMB 9375 / NCTC 10341 / NRRL NRS-1264 / Gibson 46).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX   NCBI_TaxID=279010;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14580 / DSM 13 / JCM 2505 / CCUG 7422 / NBRC 12200 / NCIMB 9375
RC   / NCTC 10341 / NRRL NRS-1264 / Gibson 46;
RX   PubMed=15383718; DOI=10.1159/000079829;
RA   Veith B., Herzberg C., Steckel S., Feesche J., Maurer K.H., Ehrenreich P.,
RA   Baeumer S., Henne A., Liesegang H., Merkl R., Ehrenreich A., Gottschalk G.;
RT   "The complete genome sequence of Bacillus licheniformis DSM13, an organism
RT   with great industrial potential.";
RL   J. Mol. Microbiol. Biotechnol. 7:204-211(2004).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14580 / DSM 13 / JCM 2505 / CCUG 7422 / NBRC 12200 / NCIMB 9375
RC   / NCTC 10341 / NRRL NRS-1264 / Gibson 46;
RX   PubMed=15461803; DOI=10.1186/gb-2004-5-10-r77;
RA   Rey M.W., Ramaiya P., Nelson B.A., Brody-Karpin S.D., Zaretsky E.J.,
RA   Tang M., Lopez de Leon A., Xiang H., Gusti V., Clausen I.G., Olsen P.B.,
RA   Rasmussen M.D., Andersen J.T., Joergensen P.L., Larsen T.S., Sorokin A.,
RA   Bolotin A., Lapidus A., Galleron N., Ehrlich S.D., Berka R.M.;
RT   "Complete genome sequence of the industrial bacterium Bacillus
RT   licheniformis and comparisons with closely related Bacillus species.";
RL   Genome Biol. 5:R77.1-R77.12(2004).
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; CP000002; AAU22207.1; -; Genomic_DNA.
DR   EMBL; AE017333; AAU39560.1; -; Genomic_DNA.
DR   RefSeq; WP_003179237.1; NC_006322.1.
DR   AlphaFoldDB; Q65N04; -.
DR   SMR; Q65N04; -.
DR   STRING; 279010.BL00847; -.
DR   EnsemblBacteria; AAU22207; AAU22207; BL00847.
DR   GeneID; 66217234; -.
DR   KEGG; bld:BLi00618; -.
DR   KEGG; bli:BL00847; -.
DR   eggNOG; COG2344; Bacteria.
DR   HOGENOM; CLU_061534_1_1_9; -.
DR   OMA; HEQRKAG; -.
DR   OrthoDB; 1872374at2; -.
DR   BioCyc; BLIC279010:BLI_RS03065-MON; -.
DR   Proteomes; UP000000606; 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..215
FT                   /note="Redox-sensing transcriptional repressor Rex"
FT                   /id="PRO_1000065389"
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;  24174 MW;  3E6E5A5ABB955A46 CRC64;
     MNMDHSKIPQ ATAKRLPLYY RFLKNLHASG KQRVSSAELS DAVKVDSATI RRDFSYFGAL
     GKKGYGYNVN YLLSFFRKTL DQDETTNVTL IGVGNLGTAF LHYNFIKNNN TKIAMAFDIN
     EEKIGTEVGG VPVYDLNKLE EHMTDDDIPV AILTVPAQAA QSITDRLVAL GIKGILNFTP
     ARLNVPEHIR IHHIDLAVEL QSLVYFLKHY SMQEK