REX_ALKHC
ID REX_ALKHC Reviewed; 211 AA.
AC Q9Z9P6;
DT 16-FEB-2004, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-1999, sequence version 1.
DT 03-AUG-2022, entry version 120.
DE RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000255|HAMAP-Rule:MF_01131};
GN Name=rex {ECO:0000255|HAMAP-Rule:MF_01131}; OrderedLocusNames=BH0551;
OS Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS / JCM 9153 / C-125) (Bacillus halodurans).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX NCBI_TaxID=272558;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX PubMed=10086841; DOI=10.1007/s007920050095;
RA Takami H., Nakasone K., Hirama C., Takaki Y., Masui N., Fuji F.,
RA Nakamura Y., Inoue A.;
RT "An improved physical and genetic map of the genome of alkaliphilic
RT Bacillus sp. C-125.";
RL Extremophiles 3:21-28(1999).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT and genomic sequence comparison with Bacillus subtilis.";
RL Nucleic Acids Res. 28:4317-4331(2000).
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; AB013375; BAA75386.1; -; Genomic_DNA.
DR EMBL; BA000004; BAB04270.1; -; Genomic_DNA.
DR PIR; G83718; G83718.
DR RefSeq; WP_010896728.1; NC_002570.2.
DR AlphaFoldDB; Q9Z9P6; -.
DR SMR; Q9Z9P6; -.
DR STRING; 272558.10173164; -.
DR EnsemblBacteria; BAB04270; BAB04270; BAB04270.
DR KEGG; bha:BH0551; -.
DR eggNOG; COG2344; Bacteria.
DR HOGENOM; CLU_061534_1_1_9; -.
DR OMA; HEQRKAG; -.
DR OrthoDB; 1872374at2; -.
DR Proteomes; UP000001258; 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..211
FT /note="Redox-sensing transcriptional repressor Rex"
FT /id="PRO_0000097884"
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 211 AA; 23559 MW; D1DCD5FBFAE56FF0 CRC64;
MNNEPTKIPQ ATAKRLPLYY RFLENLHASG KQRVSSSELS EAVKVDSATI RRDFSYFGAL
GKKGYGYNVN YLLTFFRKTL HQDELTKVML IGVGNLGTAL LNYNFSKNNH TQIVMAFDVD
REKIGNTVSG VKIENLDNLE NKITSDVSVA ILTVPAAVAQ KTADRLVNAG VKGILNFTPA
RIAVPEHVRV HHIDLSVELQ ALIYFLKHYP L