H-Ras Proteins (image) University of Texas at Austin, Texas Advanced Computing Center Share Print E-Mail Caption H-Ras proteins (yellow) clump together in 0 to 25 microseconds in stills from the simulations produced by TACC's Stampede supercomputer. The top view of the cell membrane is shown here. The reds, blues, and whites are three different types of lipid species. Water and ions were included in the simulation but are not shown. Credit Alemayehu Gorfe, Integrative Biology and Pharmacology, UTHealth Medical School Usage Restrictions None Share Print E-Mail 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.