Direct and specific chemical control of eukaryotic translation with a synthetic RNA-protein interaction

Nucleic Acids Res. 2012 May;40(9):e64. doi: 10.1093/nar/gks028. Epub 2012 Jan 24.

Abstract

Sequence-specific RNA-protein interactions, though commonly used in biological systems to regulate translation, are challenging to selectively modulate. Here, we demonstrate the use of a chemically-inducible RNA-protein interaction to regulate eukaryotic translation. By genetically encoding Tet Repressor protein (TetR)-binding RNA elements into the 5'-untranslated region (5'-UTR) of an mRNA, translation of a downstream coding sequence is directly controlled by TetR and tetracycline analogs. In endogenous and synthetic 5'-UTR contexts, this system efficiently regulates the expression of multiple target genes, and is sufficiently stringent to distinguish functional from non-functional RNA-TetR interactions. Using a reverse TetR variant, we illustrate the potential for expanding the regulatory properties of the system through protein engineering strategies.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • 5' Untranslated Regions*
  • Animals
  • Aptamers, Nucleotide / chemistry*
  • Aptamers, Nucleotide / metabolism
  • Cell-Free System
  • Gene Expression Regulation*
  • Polyribosomes / metabolism
  • Protein Biosynthesis*
  • Rabbits
  • Repressor Proteins / metabolism*
  • Saccharomyces cerevisiae / genetics

Substances

  • 5' Untranslated Regions
  • Aptamers, Nucleotide
  • Repressor Proteins
  • tetracycline resistance-encoding transposon repressor protein