Histone mRNA Three-Prime (3') End-Processing Machine (VIDEO) University of North Carolina Health Care This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption This is a video of the histone mRNA three-prime (3') end-processing machine. Credit Liang Tong Lab, Columbia University Usage Restrictions credit properly License Licensed 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.