Modulation of RNA polymerase activity through the trigger loop folding

Transcription. 2010 Sep-Oct;1(2):89-94. doi: 10.4161/trns.1.2.12544.

Abstract

Folding of the trigger loop of RNA polymerase promotes nucleotide addition through creating a closed, catalytically competent conformation of the active center. Here, we discuss the impact of adjacent RNA polymerase elements, including the F loop and the jaw domain, as well as external regulatory factors on the trigger loop folding and catalysis.

Keywords: RNA polymerase; nucleotide discrimination; temperature adaptation; transcription elongation complex; trigger loop.

Publication types

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

MeSH terms

  • Amino Acid Sequence
  • Biocatalysis
  • DNA-Directed RNA Polymerases / chemistry*
  • DNA-Directed RNA Polymerases / genetics
  • DNA-Directed RNA Polymerases / metabolism*
  • Models, Molecular
  • Molecular Sequence Data
  • Mutation
  • Protein Conformation
  • Protein Folding*
  • Protein Structure, Secondary
  • Protein Structure, Tertiary
  • Sequence Homology, Amino Acid
  • Temperature
  • Transcription, Genetic*

Substances

  • DNA-Directed RNA Polymerases