Chromatin structure of the 87A7 heat-shock locus during heat induction and recovery from heat shock

Stella Han, A. Udvardy, Paul Schedl

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We have examined the chromatin organization of the 87A7 heat-shock locus (which contains two hsp 70 genes transcribed in opposite orientation) as a function of the time of heat induction and during the course of recovery from heat shock. Our studies show that both induction and recovery from heat shock are accompanied by highly specific alterations in the nucleoprotein structure of this locus. Moreover, these changes parallel the transcriptional activity of the hsp 70 heat-shock genes. We have also examined the effect of inhibitors of transcription and translation. Cycloheximide, an inhibitor of translation, blocks both the attenuation of the heat-shock response (which occurs after a long-term incubation at elevated temperatures) and the re-establishment of the pre-induced chromatin organization of the locus during recovery from heat shock. Actinomycin D, an inhibitor of transcription, prevents some but not all of the alterations in chromatin structure which normally accompany heat induction.

Original languageEnglish
Pages (from-to)154-160
Number of pages7
JournalBBA - Gene Structure and Expression
Volume825
Issue number2
DOIs
Publication statusPublished - Jun 24 1985

Fingerprint

Chromatin
Shock
Hot Temperature
Recovery
Transcription
Genes
Heat-Shock Response
Nucleoproteins
Dactinomycin
Cycloheximide
Temperature

Keywords

  • Actinomycin D
  • Chromatin structure
  • Cycloheximide
  • Heat induction
  • Heat-shock locus

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Genetics
  • Structural Biology

Cite this

Chromatin structure of the 87A7 heat-shock locus during heat induction and recovery from heat shock. / Han, Stella; Udvardy, A.; Schedl, Paul.

In: BBA - Gene Structure and Expression, Vol. 825, No. 2, 24.06.1985, p. 154-160.

Research output: Contribution to journalArticle

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