Model of a complex protein (VIDEO) University of California - Davis Health This video is under embargo. Please login to access this video. Caption A model of a complex protein that may fit into nerve channels and stop the transmission of pain. Credit (Phuong Tran Nguyen, UC Davis) Usage Restrictions Not for commercial use. License Original 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.