REX_THEPX
ID REX_THEPX Reviewed; 224 AA.
AC B0K3N1;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 18-MAR-2008, sequence version 1.
DT 03-AUG-2022, entry version 81.
DE RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN Name=rex {ECO:0000255|HAMAP-Rule:MF_01131}; OrderedLocusNames=Teth514_0496;
OS Thermoanaerobacter sp. (strain X514).
OC Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC Thermoanaerobacteraceae; Thermoanaerobacter;
OC unclassified Thermoanaerobacter.
OX NCBI_TaxID=399726;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=X514;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA Tice H., Pitluck S., Bruce D., Goodwin L., Saunders E., Brettin T.,
RA Detter J.C., Han C., Schmutz J., Larimer F., Land M., Hauser L.,
RA Kyrpides N., Kim E., Hemme C., Fields M.W., He Z., Zhou J., Richardson P.;
RT "Complete sequence of Thermoanaerobacter sp. X514.";
RL Submitted (JAN-2008) 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; CP000923; ABY91806.1; -; Genomic_DNA.
DR RefSeq; WP_009051727.1; NC_010320.1.
DR AlphaFoldDB; B0K3N1; -.
DR SMR; B0K3N1; -.
DR EnsemblBacteria; ABY91806; ABY91806; Teth514_0496.
DR KEGG; tex:Teth514_0496; -.
DR HOGENOM; CLU_061534_1_0_9; -.
DR OMA; SQVRQDF; -.
DR Proteomes; UP000002155; 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..224
FT /note="Redox-sensing transcriptional repressor Rex"
FT /id="PRO_1000137339"
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 224 AA; 25429 MW; FDA2A6070D19F696 CRC64;
MSKKTIVSMA VIRRLPRYHR YLEELLKNDV KRISSRELSE KMGVTASQIR QDLNNFGGFG
QQGYGYNVEE LYNNLTKILG LDKTYNTIII GAGNLGQAIA NYTSFEKSGF NLKGIFDINP
RLFGLKIRDV EVMDIETVED FIARNKIDIG ILCIPKDNAQ YTADRLVRAG IKAIWNFSPI
DLKVPDDVIL ENVHLSDSLF TVSYRLNEEE LFKKLKGETA KIDG