Interaction between Arabidopsis heat shock transcription factor 1 and 70 kDa heat shock proteins | Zendy

ByungHoon Kim | Zendy; Fritz Schöffl | Zendy

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Interaction between Arabidopsis heat shock transcription factor 1 and 70 kDa heat shock proteins

Author(s) -

ByungHoon Kim,

Fritz Schöffl

Publication year - 2002

Publication title -

journal of experimental botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.616

H-Index - 242

eISSN - 1460-2431

pISSN - 0022-0957

DOI - 10.1093/jexbot/53.367.371

Subject(s) - heat shock factor , arabidopsis , hsf1 , hsp70 , transcription factor , microbiology and biotechnology , heat shock protein , regulator , yeast , heat shock , biology , electrophoretic mobility shift assay , transcription (linguistics) , dna binding protein , chemistry , dna binding domain , biochemistry , mutant , gene , linguistics , philosophy

The activity of the Arabidopsis heat shock transcription factor (HSF) is repressed at normal conditions but activated by cellular stresses. Circumstantial evidence suggests that HSP70 may function as a negative feedback regulator of HSF activity. Here the interaction between HSF and HSP70 is reported using electrophoretic mobility shift and yeast two-hybrid assays. Subdomain mapping indicates an interaction of the activation domain and DNA-binding domain of HSF1 with HSP70.

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