Abstract
Chromophore-assisted laser inactivation (CALI) is an optogenetic technique in which light-induced release of reactive oxygen species triggers acute inactivation of a protein of interest, with high spatial and temporal resolution. At its simplest, selective protein inactivation can be achieved via the genetic fusion of the protein to a photosensitizer such as EGFP, and using standard optical setups such as laser scanning confocal microscopes. Although use of CALI in Drosophila is relatively recent, this technique can be a powerful complement to developmental genetics, especially in vivo as it allows visualization of the immediate consequences of local protein inactivation when coupled to time-lapse microscopy analysis. In addition to providing examples of protocols, this chapter is intended as a conceptual framework to support the rational design of CALI experiments.
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Acknowledgements
We thank Andrew Davidson and Will Wood for critical reading of the manuscript. BS acknowledges funding from a Welcome Trust Investigator Award [099234/Z/12/Z]. APM and BM are supported respectively by Université Toulouse III-Paul Sabatier and Centre National de la Recherche Scientifique (CNRS).
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Pélissier-Monier, A., Sanson, B., Monier, B. (2016). Performing Chromophore-Assisted Laser Inactivation in Drosophila Embryos Using GFP. In: Dahmann, C. (eds) Drosophila. Methods in Molecular Biology, vol 1478. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-6371-3_8
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DOI: https://doi.org/10.1007/978-1-4939-6371-3_8
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