Propofol Binding Site on GABA (IMAGE) Washington University School of Medicine Caption Researchers used a photoanalogue of propofol to identify where it binds to GABAA receptors. The small green circles on the left show the site. Credit Alex S. Evers/Nicholas P. Franks 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.