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Saccharomyces cerevisiae

ABSTRACT: Barcode Sequencing Screen Identifies SUB1 as a Novel Regulator of Yeast Mating Pathway Genes

PROVIDER: PRJNA292121 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR2148150.fastq.gz	Fastqsanger.gz
	SRR2148160.fastq.gz	Fastqsanger.gz
	SRR2148170.fastq.gz	Fastqsanger.gz
	SRR2148180.fastq.gz	Fastqsanger.gz
	SRR2148190.fastq.gz	Fastqsanger.gz

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Barcode Sequencing Screen Identifies SUB1 as a Novel Regulator of Yeast Mating Pathway Genes

Project description:The yeast mating pathway serves as a valuable model of eukaryotic mitogen activated protein kinase (MAPK) pathways, several components of which are actual and potential therapeutic drug targets. Here we present a new screening method we developed that combines two technologies, fluorescence activated cell sorting (FACS) with Barcode analysis by Sequencing (Bar-Seq). Using the new screening method and pFUS1-GFP as a reporter, we identified known mutants in the mating pathway and also characterized a source of false positives that arose as a result of the design of this screen. Additionally from the screen, we identified that a deletion mutant, sub1Δ, that exhibits increased expression of the GFP reporter. Our ChIP-Seq data shows that Sub1 increases binding to the promoters of several pheromone-inducible genes and supports our finding that SUB1 is involved in regulating the expression of genes in mating pathway. RNA-Seq of a sub1Δ mutant shows that the majority of genes have no change in RNA and of the small subset that do, most of these show a decrease in expression. In this study, we find that the sub1Δ mutant has increased basal levels of a small subset of genes including IMD2 (consistent with previous reports) and a gene necessary for efficient mating, FIG1.

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