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2017 ; 1468
(ä): 111-20
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Global Run-On Sequencing (GRO-Seq)
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Gardini A
Methods Mol Biol
2017[]; 1468
(ä): 111-20
PMID27662873
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Transcription occurring at gene loci results in accumulation of mature RNA
molecules (i.e., mRNAs) that can be easily assayed by RT-PCR or RNA sequencing.
However, the steady-state level of RNA does not accurately mirror transcriptional
activity per se. In fact, RNA stability plays a major role in determining the
relative abundance of any given RNA molecule. Here, I describe a protocol of
Nuclear Run-On assay coupled to deep sequencing to assess real-time transcription
from engaged RNA polymerase. Mapping nascent transcripts at the genome-wide scale
provides a reliable measure of transcriptional activity in mammalian cells and
delivers a high-resolution map of coding and noncoding transcripts that is
especially useful for annotation and quantification of short-lived RNA molecules.