CST–Polα/primase (VIDEO) Rockefeller University This video is under embargo. Please login to access this video. Caption CST–Polα/primase, the enzyme that solves the newly discovered end-replication problem. Credit Credit Sarah Cai Usage Restrictions Video may be used only to illustrate the research described in the accompanying release. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.