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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Bibliographic Details
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