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The transcriptional inhibitor thiolutin blocks mRNA degradation

Authors :
Pelechano García, Vicente José
Pérez Ortín, José Enrique
Source :
Pelechano García, Vicente José Pérez Ortín, José Enrique 2007 The transcriptional inhibitor thiolutin blocks mRNA degradation. Yeast 25 2 85 92, RODERIC. Repositorio Institucional de la Universitat de Valéncia, instname
Publication Year :
2008

Abstract

Thiolutin is commonly used as a general inhibitor of transcription in yeast. It has been used to calculate mRNA decay rates by stopping the transcription and then determining the relative abundance of individual mRNAs at different times after inhibition. We report here that thiolutin is also an inhibitor of mRNA degradation, and thus its use can lead to miscalculations of mRNA half-lives. The inhibition of mRNA decay seems to affect the mRNA degradation pathway without impeding poly(A) shortening, given that the decay rate of total poly(A) amount is not reduced by thiolutin. Moreover, the thiolutin-dependent inhibition of mRNA degradation has variable effects on different functional groups of genes, suggesting that they use various degradation pathways for their mRNAs.

Details

Database :
OpenAIRE
Journal :
Pelechano García, Vicente José Pérez Ortín, José Enrique 2007 The transcriptional inhibitor thiolutin blocks mRNA degradation. Yeast 25 2 85 92, RODERIC. Repositorio Institucional de la Universitat de Valéncia, instname
Accession number :
edsair.dedup.wf.001..4916513f5f4ab36ac00d89f2f0e12434