Ribosome profiling reveals sequence-independent post-initiation pausing as a signature of translation
نویسندگان
چکیده
منابع مشابه
Ribosome pausing and stacking during translation of a eukaryotic mRNA.
We have devised a sensitive assay to determine the distribution of translating ribosomes on a mRNA. Using this assay to monitor ribosome transit on bovine preprolactin mRNA, we have detected four major positions of ribosome pausing in both wheat-germ and rabbit reticulocyte extracts. Two of these rate-limiting steps represent initiation and termination. One pause occurs after approximately 75 a...
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Deep sequencing of ribosome footprints (ribosome profiling) maps and quantifies mRNA translation. Because ribosomes decode mRNA every 3 nt, the periodic property of ribosome footprints could be used to identify novel translated ORFs. However, due to the limited resolution of existing methods, the 3-nt periodicity is observed mostly in a global analysis, but not in individual transcripts. Here, ...
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Numerous cellular mRNAs encoding proteins critical during cell stress, apoptosis, and the cell cycle seem to be translated by means of internal ribosome entry sequences (IRES) when cap-dependent translation is compromised. The underlying molecular mechanisms are largely unknown. Using a HeLa-based cell-free translation system that mirrors the function of cellular IRESs in vitro, we recently dem...
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Microarrays have the capacity to measure the expression levels of thousands of genes simultaneously1. Although microarrays have revolutionized mRNA analysis, they are only a proxy for the actual amount of protein synthesis occurring in cells. Multiple levels of transcriptional and post-transcriptional regulation contribute to the inherent challenges of proteomic analysis. A direct method for an...
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Mitochondria are essential cellular organelles for generation of energy and their dysfunction may cause diabetes, Parkinson's disease and multi-systemic failure marked by failure to thrive, gastrointestinal problems, lactic acidosis and early lethality. Disease-associated mitochondrial mutations often affect components of the mitochondrial translation machinery. Here we perform ribosome profili...
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ژورنال
عنوان ژورنال: Cell Research
سال: 2014
ISSN: 1001-0602,1748-7838
DOI: 10.1038/cr.2014.74