FRET-FLIM for visualizing and quantifying protein interactions in live plant cells

Alejandra Freire Rios, Tatyana Radoeva, Bert de Rybel, Dolf Weijers, Janwillem Borst*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

12 Citations (Scopus)


Proteins are the workhorses that control most biological processes in living cells. Although proteins can accomplish their functions independently, the vast majority of functions require proteins to interact with other proteins or biomacromolecules. Protein interactions can be investigated through biochemical assays such as co-immunoprecipitation (co-IP) or Western blot analysis, but such assays lack spatial information. Here we describe a well-developed imaging method, Förster resonance energy transfer (FRET) analyzed by fluorescence lifetime imaging microscopy (FLIM), that can be used to visualize protein interactions with both spatial and temporal resolution in live cells. We demonstrate its use in plant developmental research by visualizing in vivo dimerization of AUXIN RESPONSE FACTOR (ARF) proteins, mediating auxin responses.

Original languageEnglish
Title of host publicationMethods in Molecular Biology
EditorsJürgen Kleine-Vehn, Michael Sauer
PublisherHumana Press
ISBN (Electronic)9781493964697
ISBN (Print)9781493964673
Publication statusPublished - 2017

Publication series

NameMethods in Molecular Biology
ISSN (Print)1064-3745


  • FLIM
  • Fluorescent proteins
  • FRET
  • Protein interactions


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