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Enhanced Yeast One-hybrid Screens To Identify Transcription Factor Binding To Human DNA Sequences

Overview
Journal J Vis Exp
Date 2019 Feb 26
PMID 30799854
Citations 2
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Abstract

Identifying the sets of transcription factors (TFs) that regulate each human gene is a daunting task that requires integrating numerous experimental and computational approaches. One such method is the yeast one-hybrid (Y1H) assay, in which interactions between TFs and DNA regions are tested in the milieu of the yeast nucleus using reporter genes. Y1H assays involve two components: a 'DNA-bait' (e.g., promoters, enhancers, silencers, etc.) and a 'TF-prey,' which can be screened for reporter gene activation. Most published protocols for performing Y1H screens are based on transforming TF-prey libraries or arrays into DNA-bait yeast strains. Here, we describe a pipeline, called enhanced Y1H (eY1H) assays, where TF-DNA interactions are interrogated by mating DNA-bait strains with an arrayed collection of TF-prey strains using a high density array (HDA) robotic platform that allows screening in a 1,536 colony format. This allows for a dramatic increase in throughput (60 DNA-bait sequences against >1,000 TFs takes two weeks per researcher) and reproducibility. We illustrate the different types of expected results by testing human promoter sequences against an array of 1,086 human TFs, as well as examples of issues that can arise during screens and how to troubleshoot them.

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References
1.
Brady S, Zhang L, Megraw M, Martinez N, Jiang E, Yi C . A stele-enriched gene regulatory network in the Arabidopsis root. Mol Syst Biol. 2011; 7:459. PMC: 3049412. DOI: 10.1038/msb.2010.114. View

2.
Whitfield T, Wang J, Collins P, Partridge E, Force Aldred S, Trinklein N . Functional analysis of transcription factor binding sites in human promoters. Genome Biol. 2012; 13(9):R50. PMC: 3491394. DOI: 10.1186/gb-2012-13-9-r50. View

3.
Jolma A, Yan J, Whitington T, Toivonen J, Nitta K, Rastas P . DNA-binding specificities of human transcription factors. Cell. 2013; 152(1-2):327-39. DOI: 10.1016/j.cell.2012.12.009. View

4.
Burdo B, Gray J, Goetting-Minesky M, Wittler B, Hunt M, Li T . The Maize TFome--development of a transcription factor open reading frame collection for functional genomics. Plant J. 2014; 80(2):356-66. PMC: 4283594. DOI: 10.1111/tpj.12623. View

5.
Pruneda-Paz J, Breton G, Nagel D, Kang S, Bonaldi K, Doherty C . A genome-scale resource for the functional characterization of Arabidopsis transcription factors. Cell Rep. 2014; 8(2):622-32. PMC: 4125603. DOI: 10.1016/j.celrep.2014.06.033. View