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Review
. 2021 Jun;37(6):566-581.
doi: 10.1016/j.tig.2020.12.005. Epub 2021 Jan 20.

Histone Ubiquitination: An Integrative Signaling Platform in Genome Stability

Francesca Mattiroli  1 , Lorenza Penengo  2
Affiliations
Free article
Review

Histone Ubiquitination: An Integrative Signaling Platform in Genome Stability

Francesca Mattiroli et al. Trends Genet. 2021 Jun.
Free article

Abstract

Complex mechanisms are in place to maintain genome stability. Ubiquitination of chromatin plays a central role in these mechanisms. The ever-growing complexity of the ubiquitin (Ub) code and of chromatin modifications and dynamics challenges our ability to fully understand how histone ubiquitination regulates genome stability. Here we review the current knowledge on specific, low-abundant histone ubiquitination events that are highly regulated within the cellular DNA damage response (DDR), with particular emphasis on the latest discovery of Ub phosphorylation as a novel regulator of the DDR signaling pathway. We discuss players involved and potential implications of histone (phospho)ubiquitination on chromatin structure, and we highlight exciting open questions for future research.

Keywords: DDR; DNA damage response; H2AK15ub; RNF8/RNF168/USP51; chromatin modifications; pUbT12; ubiquitin phosphorylation.

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