Cell Image (IMAGE) Clemson University Caption Green fluorescent protein (green) labeled cells in the mouse brain are assayed for mTOR activity using phospho-S6 immunostaining (red). Credit Nathaniel Hartman 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.