Partners in G Protein-coupled Receptors (IMAGE) University of North Carolina Health Care Caption This is a molecular representation of the active site of Gq (in pink) stabilized by PLC (in yellow). The dotted lines represent hydrogen bonds. Credit John Sondek, PhD, UNC-Chapel Hill School of Medicine 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.