Summary: Proliferating cell nuclear antigen (PCNA) is a DNA clamp essential for DNA replication. During DNA synthesis. PCNA is continuously loaded onto and unloaded from DNA. PCNA recruits various proteins to nascent DNA to facilitate chromosome duplication. https://www.jmannino.com/deal-alert-Sink-Front-Polymer-Tip-Out-Trays-with-Hinges-flash-find/