Watching cellular machinery in action, one molecule at a time

Enrico Monachino, Lisanne M. Spenkelink, Antoine M. van Oijen*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

19 Citations (Scopus)
167 Downloads (Pure)

Abstract

Single-molecule manipulation and imaging techniques have become important elements of the biologist's toolkit to gain mechanistic insights into cellular processes. By removing ensemble averaging, single-molecule methods provide unique access to the dynamic behavior of biomolecules. Recently, the use of these approaches has expanded to the study of complex multiprotein systems and has enabled detailed characterization of the behavior of individual molecules inside living cells. In this review, we provide an overview of the various force- and fluorescence-based single-molecule methods with applications both in vitro and in vivo, highlighting these advances by describing their applications in studies on cytoskeletal motors and DNA replication. We also discuss how single molecule approaches have increased our understanding of the dynamic behavior of complex multiprotein systems. These methods have shown that the behavior of multicomponent protein complexes is highly stochastic and less linear and deterministic than previously thought. Further development of single-molecule tools will help to elucidate the molecular dynamics of these complex systems both inside the cell and in solutions with purified components.

Original languageEnglish
Pages (from-to)41-51
Number of pages11
JournalJournal of Cell Biology
Volume216
Issue number1
DOIs
Publication statusPublished - 2-Jan-2017

Keywords

  • ATOMIC-FORCE MICROSCOPY
  • SINGLE-MOLECULE
  • IN-VIVO
  • DNA-REPLICATION
  • LIVING CELLS
  • MAGNETIC TWEEZERS
  • HIGH-RESOLUTION
  • BIOMOLECULAR PROCESSES
  • ELECTRON-MICROSCOPY
  • ESCHERICHIA-COLI

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