Adaptor (IMAGE) University of Massachusetts Amherst Caption Joanne Lau, a microbiology doctoral student, and her advisor Peter Chien in the biochemistry and molecular biology department at UMass Amherst, report how two molecular pathways, protein degradation and phosphorylation, work together to ensure normal bacterial growth. Credit UMass Amherst 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.