Abstract:
:Aberrant gene expression underlies many human diseases. RNA polymerase II (Pol II) pausing is a key regulatory step in transcription. Here, we mapped the locations of RNA Pol II in normal human cells and found that RNA Pol II pauses in a consistent manner across individuals and cell types. At more than 1,000 genes including MYO1E and SESN2, RNA Pol II pauses at precise nucleotide locations. Characterization of these sites shows that RNA Pol II pauses at GC-rich regions that are marked by a sequence motif. Sixty-five percent of the pause sites are cytosines. By differential allelic gene expression analysis, we showed in our samples and a population dataset from the Genotype-Tissue Expression (GTEx) consortium that genes with more paused polymerase have lower expression levels. Furthermore, mutagenesis of the pause sites led to a significant increase in promoter activities. Thus, our data uncover that RNA Pol II pauses precisely at sites with distinct sequence features that in turn regulate gene expression.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Watts JA,Burdick J,Daigneault J,Zhu Z,Grunseich C,Bruzel A,Cheung VGdoi
10.1016/j.ajhg.2019.08.003subject
Has Abstractpub_date
2019-10-03 00:00:00pages
677-688issue
4eissn
0002-9297issn
1537-6605pii
S0002-9297(19)30306-4journal_volume
105pub_type
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