The DREAM-DRE interaction: Key nucleotides and dominant negative mutants

  • Fran Ledo
  • , Wolfgang A. Link
  • , Angel M. Carrión
  • , Valentina Echeverria
  • , Britt Mellström
  • , José R. Naranjo

Research output: Contribution to journalReview articlepeer-review

44 Citations (Scopus)

Abstract

Transcriptional repressor DREAM, an EF-hand containing calcium-binding protein, blocks basal expression of target genes through specific interaction with DRE sites in the DNA. The sequence GTCA forms the central core of the DRE site, whereas flanking nucleotides contribute notably to the affinity for DREAM. Release of binding of DREAM from the DRE results in derepression, a process that is regulated by Ca2+. Change of two amino acids within an EF-hand in DREAM blocks Ca2+-induced derepression and results in potent dominant negative mutants of endogenous DREAM.

Original languageEnglish
Pages (from-to)162-168
Number of pages7
JournalBiochimica et Biophysica Acta - Molecular Cell Research
Volume1498
Issue number2-3
DOIs
Publication statusPublished - 20 Dec 2000
Externally publishedYes

Keywords

  • Ca-regulated transcription
  • DRE
  • DREAM
  • Dominant negative mutant
  • EF-hand

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