Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of S. cerevisiae paf1 and ctr9 mutants to identify direct targets of the Paf1/RNA polymerase II complex


ABSTRACT: To identify the direct targets of the Paf1/RNA polymerase II complex we compared expression profiles of isogenic wild type and paf1 and ctr9 mutant strains. We also created a Tet-regulated form of Paf1 and monitored expression patterns after shut off of Paf1. Samples were isolated at one hour intervals from 1 to 8 hours after shut off. Experiment Overall Design: Transcripts were compared on Affymetrix microarrays using standard protocols.

ORGANISM(S): Saccharomyces cerevisiae

SUBMITTER: Judith Jaehning 

PROVIDER: E-GEOD-3200 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

A posttranscriptional role for the yeast Paf1-RNA polymerase II complex is revealed by identification of primary targets.

Penheiter Kristi L KL   Washburn Taylor M TM   Porter Stephanie E SE   Hoffman Matthew G MG   Jaehning Judith A JA  

Molecular cell 20051001 2


The yeast Paf1 complex (Paf1C: Paf1, Cdc73, Ctr9, Rtf1, and Leo1) is associated with RNA Polymerase II (Pol II) at promoters and coding regions of transcriptionally active genes, but transcript abundance for only a small subset of genes is altered by loss of Paf1. By using conditional and null alleles of PAF1 and microarrays, we determined the identity of both primary and secondary targets of the Paf1C. Neither primary nor secondary Paf1C target promoters were responsive to loss of Paf1. Instead  ...[more]

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