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Generation of a versatile BiFC ORFeome library for analyzing protein-protein interactions in live Drosophila

Abstract : Transcription factors achieve specificity by establishing intricate interaction networks that will change depending on the cell context. Capturing these interactions in live condition is however a challenging issue that requires sensitive and non-invasive methods. We present a set of fly lines, called 'multicolor BiFC library', which covers most of the Drosophila transcription factors for performing Bimolecular Fluorescence Complementation (BiFC). The multicolor BiFC library can be used to probe two different binary interactions simultaneously and is compatible for large-scale interaction screens. The library can also be coupled with established Drosophila genetic resources to analyze interactions in the developmentally relevant expression domain of each protein partner. We provide proof of principle experiments of these various applications, using Hox proteins in the live Drosophila embryo as a case study. Overall this novel collection of ready-to-use fly lines constitutes an unprecedented genetic toolbox for the identification and analysis of protein-protein interactions in vivo.
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Johannes Bischof, Marilyne Duffraisse, Edy Furger, Leiore Ajuria, Guillaume Giraud, et al.. Generation of a versatile BiFC ORFeome library for analyzing protein-protein interactions in live Drosophila. eLife, eLife Sciences Publication, 2018, 7, ⟨10.7554/eLife.38853⟩. ⟨hal-01882683⟩

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