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REX_CALBD
ID   REX_CALBD               Reviewed;         217 AA.
AC   B9MPL7;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN   Name=rex {ECO:0000255|HAMAP-Rule:MF_01131}; OrderedLocusNames=Athe_0654;
OS   Caldicellulosiruptor bescii (strain ATCC BAA-1888 / DSM 6725 / Z-1320)
OS   (Anaerocellum thermophilum).
OC   Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC   Thermoanaerobacterales Family III. Incertae Sedis; Caldicellulosiruptor.
OX   NCBI_TaxID=521460;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1888 / DSM 6725 / Z-1320;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Sims D., Meincke L., Brettin T., Detter J.C.,
RA   Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA   Kataeva I., Adams M.W.W.;
RT   "Complete sequence of chromosome of Anaerocellum thermophilum DSM 6725.";
RL   Submitted (JAN-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; CP001393; ACM59778.1; -; Genomic_DNA.
DR   RefSeq; WP_015907226.1; NC_012034.1.
DR   AlphaFoldDB; B9MPL7; -.
DR   SMR; B9MPL7; -.
DR   STRING; 521460.Athe_0654; -.
DR   EnsemblBacteria; ACM59778; ACM59778; Athe_0654.
DR   GeneID; 31772008; -.
DR   KEGG; ate:Athe_0654; -.
DR   eggNOG; COG2344; Bacteria.
DR   HOGENOM; CLU_061534_1_0_9; -.
DR   OMA; SQVRQDF; -.
DR   OrthoDB; 1872374at2; -.
DR   Proteomes; UP000007723; 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..217
FT                   /note="Redox-sensing transcriptional repressor Rex"
FT                   /id="PRO_1000164074"
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   217 AA;  24717 MW;  2E0D5F7850A35872 CRC64;
     MFKKKNISLA VIRRLPRYLR YVEDLLNHDV LRISSSELSQ RMGYTASQVR QDFNNFGGFG
     QQGYGYSTQV LYENLVKILG LDRNFKMVIV GVGNLGQALA NYANFYKKGF RLIGLFDIDP
     QKVGKTIRDI KIEHIDKLKD FIKKNDVDIG VLCVPADVAQ EVADIMVEGG IKGIWNFTAK
     EIEVKGDVVV ENVHLIDSLM VLSYKLNEKL LEKERIK
 
 
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