Tanenbaum et al. 2015 (PRJNA281177)

General Details

Title Regulation of protein translation during mitosis
Organism
Number of Samples 6
Release Date 2015/04/15 00:00
Sequencing Types
Protocol Details

Study Links

Repository Details

SRA SRP057253
ENA SRP057253
GEO GSE67902
BioProject PRJNA281177

Publication

Title
Authors Tanenbaum ME,Stern-Ginossar N,Weissman JS,Vale RD
Journal eLife
Publication Date 2015 Aug 25
Abstract Passage through mitosis is driven by precisely-timed changes in transcriptional regulation and protein degradation. However, the importance of translational regulation during mitosis remains poorly understood. Here, using ribosome profiling, we find both a global translational repression and identified ~200 mRNAs that undergo specific translational regulation at mitotic entry. In contrast, few changes in mRNA abundance are observed, indicating that regulation of translation is the primary mechanism of modulating protein expression during mitosis. Interestingly, 91% of the mRNAs that undergo gene-specific regulation in mitosis are translationally repressed, rather than activated. One of the most pronounced translationally-repressed genes is Emi1, an inhibitor of the anaphase promoting complex (APC) which is degraded during mitosis. We show that full APC activation requires translational repression of Emi1 in addition to its degradation. These results identify gene-specific translational repression as a means of controlling the mitotic proteome, which may complement post-translational mechanisms for inactivating protein function.
PMC PMC4548207
PMID 26305499
DOI
Run Accession Study Accession Scientific Name Cell Line Library Type Treatment GWIPS-viz Trips-Viz Reads BAM BigWig (F) BigWig (R)
SRR1976443 PRJNA281177 Homo sapiens RPE-1 cells immortalized with hTERT Ribo-Seq Cycloheximide
SRR1976444 PRJNA281177 Homo sapiens RPE-1 cells immortalized with hTERT Ribo-Seq Cycloheximide
SRR1976445 PRJNA281177 Homo sapiens RPE-1 cells immortalized with hTERT Ribo-Seq Cycloheximide
SRR1976446 PRJNA281177 Homo sapiens RPE-1 cells immortalized with hTERT Ribo-Seq Cycloheximide
SRR1976447 PRJNA281177 Homo sapiens RPE-1 cells immortalized with hTERT Ribo-Seq Cycloheximide
SRR1976448 PRJNA281177 Homo sapiens RPE-1 cells immortalized with hTERT Ribo-Seq Cycloheximide
Run Accession Study Accession Scientific Name Cell Line Library Type Treatment GWIPS-viz Trips-Viz Reads BAM BigWig (F) BigWig (R)

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