Kinetic schemes for post-synchronized single molecule dynamics

Biophys J. 2012 Mar 21;102(6):L23-5. doi: 10.1016/j.bpj.2012.01.054. Epub 2012 Mar 20.

Abstract

Recordings from single molecule experiments can be aggregated to determine average kinetic properties of the system under observation. The kinetics after a synchronized reaction step can be interpreted using all of the standard tools developed for ensemble perturbation experiments. The kinetics leading up to a synchronized event, determined by the lifetimes of the preceding states; however, are not as obvious if the reaction has reversible steps or branches. Here we describe a general procedure for dealing with these situations.

MeSH terms

  • Actomyosin / metabolism
  • Fluorescence Resonance Energy Transfer
  • Kinetics
  • Molecular Dynamics Simulation*
  • Optical Tweezers
  • Peptide Elongation Factor G / metabolism
  • Protein Biosynthesis

Substances

  • Peptide Elongation Factor G
  • Actomyosin