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Genome-wide chromosomal associationof Upf1 is linked toPol II transcriptionin Schizosaccharomyces pombe [ChIP-chip]

ABSTRACT: Genome-wide chromosomal associationof Upf1 is linked toPol II transcriptionin Schizosaccharomyces pombe [ChIP-chip]

PROVIDER: PRJNA716557 | ENA |

REPOSITORIES: ENA

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Genome-wide chromosomal associationof Upf1 is linked toPol II transcriptionin Schizosaccharomyces pombe [ChIP-chip]

Project description:Although the RNA helicase Upf1 has hitherto been examined mostly in relation to its cytoplasmic role in nonsense mediated mRNA decay (NMD), here we report high-throughput ChIP data indicating genome-wide association of Upf1 with active genes in Schizosaccharomyces pombe. This association is RNase sensitive and it correlates with Pol II transcription and mRNA expression levels. Changes in Pol II occupancy were detected at only some genes in a Upf1-deficient (upf1strain, however there is an increased Ser2 Pol II signal at all highly transcribed genes examined by ChIP-qPCR. Furthermore, upf1cells are hypersensitive to the transcription elongation inhibitor 6-azauracil and display Pol II abnormalities suggestive of hyperphosphorylation. A significant proportion of the genes associated with Upf1 in wild-type conditions are also mis-regulated in upf1. These data predict that via association with the nascent transcript Upf1 might influence Pol II phosphorylation and transcription as well as mRNA processing of multiple genes.

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Genome-wide chromosomal associationof Upf1 is linked toPol II transcriptionin Schizosaccharomyces pombe [ChIP-Seq]

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