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An important question when studying gene regulation is which transcription factors (TFs) interact with which cis-regulatory elements, such as promoters and enhancers. Addressing this issue in complex multicellular organisms is challenging as several hundreds of TFs and thousands of regulatory elements must be considered in the context of different tissues and physiological conditions. Yeast one-hybrid (Y1H) assays provide a powerful "gene-centered" method to identify the TFs that can bind a DNA sequence of interest. In this introduction, we describe the basic principles of the Y1H assay and its advantages and disadvantages and briefly discuss how it is complementary to "TF-centered" methods that identify protein-DNA interactions for a known protein of interest. © 2016 Cold Spring Harbor Laboratory Press.


Juan I Fuxman Bass, John S Reece-Hoyes, Albertha J M Walhout. Gene-Centered Yeast One-Hybrid Assays. Cold Spring Harbor protocols. 2016 Dec 01;2016(12):pdb.top077669

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PMID: 27934693

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