title: Genome-wide quantification of 5'-phosphorylated mRNA degradation intermediates for analysis of ribosome dynamics.
abstract: Co-translational mRNA degradation is a widespread process in which 5'-3' exonucleolytic degradation follows the last translating ribosome, thus producing an in vivo ribosomal footprint that delimits the 5' position of the mRNA molecule within the ribosome. To study this degradation process and ribosome dynamics, we developed 5PSeq, which is a method that profiles the genome-wide abundance of mRNA degradation intermediates by virtue of their 5'-phosphorylated (5'P) ends. The approach involves targeted ligation of an oligonucleotide to the 5'P end of mRNA degradation intermediates, followed by depletion of rRNA molecules, reverse transcription of 5'P mRNAs and Illumina high-throughput sequencing. 5PSeq can identify translational pauses at rare codons that are often masked when using alternative methods. This approach can be applied to previously extracted RNA samples, and it is straightforward and does not require polyribosome purification or in vitro RNA footprinting. The protocol we describe here can be applied to Saccharomyces cerevisiae and potentially to other eukaryotic organisms. Three days are required to generate 5PSeq libraries.
authors.affiliation: European Molecular Biology Laboratory (EMBL), Genome Biology Unit, Heidelberg, Germany.
authors.forename: Vicent
authors.identifier: http://orcid.org/0000-0002-9415-788X
authors.initials: V
authors.lastname: Pelechano
authors.affiliation: Stanford Genome Technology Center, Palo Alto, California, USA.|Department of Genetics, Stanford University School of Medicine, Stanford, California, USA.
authors.forename: Wu
authors.initials: W
authors.lastname: Wei
authors.affiliation: European Molecular Biology Laboratory (EMBL), Genome Biology Unit, Heidelberg, Germany.|Stanford Genome Technology Center, Palo Alto, California, USA.|Department of Genetics, Stanford University School of Medicine, Stanford, California, USA.
authors.forename: Lars M
authors.initials: LM
authors.lastname: Steinmetz
mesh_terms: D005057:Eukaryotic Cells / Q000378:metabolism*; D014176:Protein Biosynthesis; D020871:RNA Stability; D012270:Ribosomes / Q000378:metabolism*
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