Shape-Shifting Virus Shell (2 of 2) (VIDEO) European Molecular Biology Laboratory 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 As a retrovirus matures, the two parts of its shell protein (red and blue or yellow and blue) dramatically rearrange themselves, twisting and moving away from each other. Credit EMBL/T.Bharat Usage Restrictions EMBL press and picture releases including photographs, graphics, movies and videos are copyrighted by EMBL. They may be freely reprinted and distributed for non-commercial use via print, broadcast and electronic media, provided that proper attribution to authors, photographers and designers is made. 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.