Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2023 Jul 31;55(8):1311–1323. doi: 10.1038/s41588-023-01460-5

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Fig. 8 — When exposed to PARPi, SF3B1^MUT cells show an impaired replication stress response (lack of pCHK1 (S317), pATR and pRPA32) due to reduced CINP protein expression. This leads to increased origin firing, unchecked fork progression and unresolved replication intermediates via the lack of MUS81-positive FANCD2 foci. This results in ATM activation and the induction of pCHK2 (T68), stalling SF3B1^MUT cells at the G₂/M checkpoint.