Open Access
Open access
Epigenetics and Chromatin, volume 12, issue 1, publication number 15

Coupling of PARP1-mediated chromatin structural changes to transcriptional RNA polymerase II elongation and cotranscriptional splicing

Matveeva Elena A. 1
Al Tinawi Qamar M H 1, 2
Rouchka Eric C. 3, 4
Fondufe Mittendorf Yvonne N 1
1
 
Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, USA
3
 
Kentucky Biomedical Research Infrastructure Network Bioinformatics Core, Louisville, USA
4
 
Department of Computer Engineering and Computer Science, University of Louisville, Louisville, USA
Publication typeJournal Article
Publication date2019-02-18
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.9
ISSN17568935
Molecular Biology
Genetics
Abstract
BackgroundRecently, we showed that PARP1 is involved in cotranscriptional splicing, possibly by bridging chromatin to RNA and recruiting splicing factors. It also can influence alternative splicing decisions through the regulation of RNAPII elongation. In this study, we investigated the effect of PARP1-mediated chromatin changes on RNAPII movement, during transcription and alternative splicing.ResultsWe show that RNAPII pauses at PARP1–chromatin structures within the gene body. Knockdown of PARP1 abolishes this RNAPII pausing, suggesting that PARP1 may regulate RNAPII elongation. Additionally, PARP1 alters nucleosome deposition and histone post-translational modifications at specific exon–intron boundaries, thereby affecting RNAPII movement. Lastly, genome-wide analyses confirmed that PARP1 influences changes in RNAPII elongation by either reducing or increasing the rate of RNAPII elongation depending on the chromatin context.ConclusionsThese studies suggest a context-specific effect of PARP1–chromatin binding on RNA polymerase movement and provide a platform to delineate PARP1’s role in RNA biogenesis and processing.

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Matveeva E. A. et al. Coupling of PARP1-mediated chromatin structural changes to transcriptional RNA polymerase II elongation and cotranscriptional splicing // Epigenetics and Chromatin. 2019. Vol. 12. No. 1. 15
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Matveeva E. A., Al Tinawi Q. M. H., Rouchka E. C., Fondufe Mittendorf Y. N. Coupling of PARP1-mediated chromatin structural changes to transcriptional RNA polymerase II elongation and cotranscriptional splicing // Epigenetics and Chromatin. 2019. Vol. 12. No. 1. 15
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TY - JOUR
DO - 10.1186/s13072-019-0261-1
UR - https://doi.org/10.1186%2Fs13072-019-0261-1
TI - Coupling of PARP1-mediated chromatin structural changes to transcriptional RNA polymerase II elongation and cotranscriptional splicing
T2 - Epigenetics and Chromatin
AU - Matveeva, Elena A.
AU - Al Tinawi, Qamar M H
AU - Rouchka, Eric C.
AU - Fondufe Mittendorf, Yvonne N
PY - 2019
DA - 2019/02/18 00:00:00
PB - Springer Nature
IS - 1
VL - 12
PMID - 30777121
SN - 1756-8935
ER -
BibTex
Cite this
BibTex Copy
@article{2019_Matveeva,
author = {Elena A. Matveeva and Qamar M H Al Tinawi and Eric C. Rouchka and Yvonne N Fondufe Mittendorf},
title = {Coupling of PARP1-mediated chromatin structural changes to transcriptional RNA polymerase II elongation and cotranscriptional splicing},
journal = {Epigenetics and Chromatin},
year = {2019},
volume = {12},
publisher = {Springer Nature},
month = {feb},
url = {https://doi.org/10.1186%2Fs13072-019-0261-1},
number = {1},
doi = {10.1186/s13072-019-0261-1}
}
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