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The Split Luciferase Complementation Assay

  • Naohiro Kato
  • Jason Jones
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 655)

Abstract

A split luciferase complementation assay to study protein–protein interactions within Arabidopsis protoplasts in 96-well plates is described in this protocol. Two proteins of interest, a bait and prey, which are genetically fused to amino- and carboxy-terminal fragments of Renilla luciferase, are transiently expressed in protoplasts. Physical interactions of these bait and prey proteins reconstitute some of the luciferase activity and result in light emission in the presence of the luciferase substrate. This luminescence is then measured by a microplate luminometer. Amounts of the bait protein accumulated in the protoplasts can be estimated by Western blotting using an antibody that recognizes the amino-terminal fragment of Renilla luciferase. The most advantageous aspect of this assay is its capacity of detecting both association and dissociation of a protein pair of interest in a large-scale format.

Key words

Protein–protein interactions split luciferase complementation assay protoplasts large-scale analysis Renilla reniforms Arabidopsis thaliana 

Notes

Acknowledgments

The project was supported by the USDA Cooperative State Research, Education and Extension Service – National Research Initiative – Plant Genome Program, award no. 2006-35604-16627, for N.K. We thank Mr. R. Blake Crochet for his editorial work on the manuscript.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Naohiro Kato
    • 1
  • Jason Jones
    • 1
  1. 1.Department of Biological SciencesLouisiana State UniversityBaton RougeUSA

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