Rho Protein Motor (VIDEO) DOE/Lawrence Berkeley National 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 This movie shows a side view of the Rho protein motor in action. To clarify the mechanism, two of the six subunits have been removed. As ATP is released from binding sites (D, E, T and T*), the subunits (green, purple, blue and gray structures) spiral around the RNA (orange) strand, pulling the strand through the hole in the hexamer ring. This rotatory action enables the Rho motor to "walk" in one direction along the RNA strand. Credit James Berger and Nathan Thomsen, Lawrence Berkeley National Laboratory Usage Restrictions None 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.