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Shokri, Leila; Inukai, Sachi; Hafner, Antonina; Weinand, Kathryn; Hens, Korneel; Vedenko, Anastasia; Gisselbrecht, Stephen S.; Dainese, Riccardo; Bischof, Johannes; Furger, Edy; Feuz, Jean-Daniel; Basler, Konrad; Deplancke, Bart; Bulyk, Martha L.
Cell reports (Cambridge), 04/2019, Letnik: 27, Številka: 3Journal Article
Combinatorial interactions among transcription factors (TFs) play essential roles in generating gene expression specificity and diversity in metazoans. Using yeast 2-hybrid (Y2H) assays on nearly all sequence-specific Drosophila TFs, we identified 1,983 protein-protein interactions (PPIs), more than doubling the number of currently known PPIs among Drosophila TFs. For quality assessment, we validated a subset of our interactions using MITOMI and bimolecular fluorescence complementation assays. We combined our interactome with prior PPI data to generate an integrated Drosophila TF-TF binary interaction network. Our analysis of ChIP-seq data, integrating PPI and gene expression information, uncovered different modes by which interacting TFs are recruited to DNA. We further demonstrate the utility of our Drosophila interactome in shedding light on human TF-TF interactions. This study reveals how TFs interact to bind regulatory elements in vivo and serves as a resource of Drosophila TF-TF binary PPIs for understanding tissue-specific gene regulation. Display omitted •Comprehensive yeast PPI screen among essentially all D. melanogaster TFs•A subset of Y2H results validated by in vitro and in vivo binary interaction assays•Compilation of an integrated fly TF-TF interactome•TF pairs can be recruited to DNA in different modes Combinatorial regulation by transcription factors (TFs) is one mechanism for achieving condition and tissue-specific gene regulation. Shokri et al. mapped TF-TF interactions between most Drosophila TFs, reporting a comprehensive TF-TF network integrated with previously known interactions. They used this network to discern distinct TF-DNA binding modes.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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