Glutamate (video) Johns Hopkins Medicine Share Print E-Mail Loading video... Caption This is a simulation of how a glutamate molecule enters one of three main pathways into the pocket of a glutamate receptor. Red-tipped ends represent negative charges; blue-tipped ones are positive charges. Credit Alvin Yu and Albert Lau 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.