Brain Signaling Protein (IMAGE) Weill Cornell Medicine Caption A key brain signaling protein, seen here in green, that is normally lost in Fragile X syndrome neurons is restored by an experimental drug. Credit Dilek Colak 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.