Interaction between the Arabidopsis thaliana heat shock transcription factor HSF1 and the TATA binding protein TBP.
The heat shock factor (HSF1) is the central regulator of the heat stress (hs) response and is required for stimulating the transcription of the hs genes and consequently the expression of heat shock proteins. To promote the polymerase II-dependent transcription of the hs genes, HSF has to communicate with the ... basal transcription machinery. Here, we report that the Arabidopsis thaliana HSF1 interacts directly with TBP, the general TATA box binding transcription factor, as shown by affinity chromatography and electrophoretic mobility shift analyses in vitro. An in vivo interaction between AtHSF1 and AtTBP1 was suggested by results employing the yeast two-hybrid system.
Mesh Terms:
Arabidopsis, Base Sequence, Binding Sites, Chromatography, Affinity, Cloning, Molecular, DNA-Binding Proteins, Heat-Shock Proteins, Oligonucleotide Probes, RNA Polymerase II, Recombinant Proteins, Saccharomyces cerevisiae, TATA Box, TATA-Box Binding Protein, Transcription Factors
Arabidopsis, Base Sequence, Binding Sites, Chromatography, Affinity, Cloning, Molecular, DNA-Binding Proteins, Heat-Shock Proteins, Oligonucleotide Probes, RNA Polymerase II, Recombinant Proteins, Saccharomyces cerevisiae, TATA Box, TATA-Box Binding Protein, Transcription Factors
FEBS Lett.
Date: Oct. 09, 1998
PubMed ID: 9801140
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