Figure 1 (image) Columbia University School of Engineering and Applied Science Share Print E-Mail Caption Left: The fruit fly provides a unique opportunity to "watch" the effects of disease-associated mutations in the gene that encodes the myosin II motor protein. Schematic of myosin-driven body axis elongation during fruit fly development. Right: These changes in embryo shape require cell movements that are driven by mechanical forces produced by the motor protein myosin II (green). Myosin motor proteins with disease-associated mutations produce slowed cell movements in vivo. Credit Karen Kasza/Columbia Engineering & Sara Supriyatno/Sloan Kettering Institute Usage Restrictions Please credit as: Karen Kasza/Columbia Engineering 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.