In this issue of Structure, Sverzhinsky et al. (2022) report structures of archaeal DNA ligase bound to the proliferating cell nuclear antigen (PCNA) sliding clamp and a nicked DNA substrate. The structures provide snapshots of ligation intermediates, which reveal a dynamic nature of the complex and explain how PCNA stimulates the DNA ligase activity. Copyright © 2022 Elsevier Ltd. All rights reserved.
Hideki Aihara. DNA ligase and PCNA: Double-ring down to seal a break in DNA. Structure (London, England : 1993). 2022 Mar 03;30(3):324-326
PMID: 35245433
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