PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylation

TOP1 resolves DNA supercoils by forming cleavage complexes (TOP1cc) that are trapped by TOP1 inhibitors. Here the authors provide insights into the mechanistic understanding of TOP1cc PARylation, showing that inhibition of PARG results in stabilization of TOP1cc PARylation that blocks the proteasoma...

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Main Authors: Yilun Sun, Jiji Chen, Shar-yin N. Huang, Yijun P. Su, Wenjie Wang, Keli Agama, Sourav Saha, Lisa M. Jenkins, John M. Pascal, Yves Pommier
Format: Article
Language:English
Published: Nature Publishing Group 2021-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-021-25252-9
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spelling doaj-efd9b3f404b3443ca49e78b32652785a2021-08-22T11:39:38ZengNature Publishing GroupNature Communications2041-17232021-08-0112111610.1038/s41467-021-25252-9PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylationYilun Sun0Jiji Chen1Shar-yin N. Huang2Yijun P. Su3Wenjie Wang4Keli Agama5Sourav Saha6Lisa M. Jenkins7John M. Pascal8Yves Pommier9Developmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIHAdvanced Imaging and Microscopy Resource, National Institute of Biomedical Imaging and Bioengineering, NIHDevelopmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIHAdvanced Imaging and Microscopy Resource, National Institute of Biomedical Imaging and Bioengineering, NIHDevelopmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIHDevelopmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIHDevelopmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIHCollaborative Protein Technology Resource, Center for Cancer Research, National Cancer Institute, NIHDepartment of Biochemistry and Molecular Medicine, Université de MontréalDevelopmental Therapeutics Branch and Laboratory of Molecular Pharmacology, Center for Cancer Research, National Cancer Institute, NIHTOP1 resolves DNA supercoils by forming cleavage complexes (TOP1cc) that are trapped by TOP1 inhibitors. Here the authors provide insights into the mechanistic understanding of TOP1cc PARylation, showing that inhibition of PARG results in stabilization of TOP1cc PARylation that blocks the proteasomal degradation of TOP1cc.https://doi.org/10.1038/s41467-021-25252-9
collection DOAJ
language English
format Article
sources DOAJ
author Yilun Sun
Jiji Chen
Shar-yin N. Huang
Yijun P. Su
Wenjie Wang
Keli Agama
Sourav Saha
Lisa M. Jenkins
John M. Pascal
Yves Pommier
spellingShingle Yilun Sun
Jiji Chen
Shar-yin N. Huang
Yijun P. Su
Wenjie Wang
Keli Agama
Sourav Saha
Lisa M. Jenkins
John M. Pascal
Yves Pommier
PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylation
Nature Communications
author_facet Yilun Sun
Jiji Chen
Shar-yin N. Huang
Yijun P. Su
Wenjie Wang
Keli Agama
Sourav Saha
Lisa M. Jenkins
John M. Pascal
Yves Pommier
author_sort Yilun Sun
title PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylation
title_short PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylation
title_full PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylation
title_fullStr PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylation
title_full_unstemmed PARylation prevents the proteasomal degradation of topoisomerase I DNA-protein crosslinks and induces their deubiquitylation
title_sort parylation prevents the proteasomal degradation of topoisomerase i dna-protein crosslinks and induces their deubiquitylation
publisher Nature Publishing Group
series Nature Communications
issn 2041-1723
publishDate 2021-08-01
description TOP1 resolves DNA supercoils by forming cleavage complexes (TOP1cc) that are trapped by TOP1 inhibitors. Here the authors provide insights into the mechanistic understanding of TOP1cc PARylation, showing that inhibition of PARG results in stabilization of TOP1cc PARylation that blocks the proteasomal degradation of TOP1cc.
url https://doi.org/10.1038/s41467-021-25252-9
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