E-GEOD-46142 - Global Analysis of Yeast mRNPs

Status
Released on 18 April 2013, last updated on 12 June 2013
Organism
Saccharomyces cerevisiae
Samples (9)
Protocols (3)
Description
Proteins regulate gene expression by controlling mRNA biogenesis, localization, translation and decay. Identifying the composition, diversity and function of mRNPs (mRNA protein complexes) is essential to understanding these processes. In a global survey of S. cerevisiae mRNA binding proteins we identified 120 proteins that cross-link to mRNA, including 66 new mRNA binding proteins. These include kinases, RNA modification enzymes, metabolic enzymes, and tRNA and rRNA metabolism factors. These proteins show dynamic subcellular localization during stress, including assembly into stress granules and P-bodies (Processing-bodies). CLIP (cross-linking and immunoprecipitation) analyses of the P-body components Pat1, Lsm1, Dhh1 and Sbp1 identified sites of interaction on specific mRNAs revealing positional binding preferences and co-assembly preferences. Taken together, this work defines the major yeast mRNP proteins, reveals widespread changes in their subcellular location during stress, and begins to define assembly rules for P-body mRNPs. CLIP-seq analysis of Dhh1, Lsm1, Pat1 and Sbp1
Experiment type
other 
Contacts
MINSEQE
Exp. designProtocolsFactorsProcessedSeq. reads
Files
Investigation descriptionE-GEOD-46142.idf.txt
Sample and data relationshipE-GEOD-46142.sdrf.txt
Processed data (1)E-GEOD-46142.processed.1.zip
Links