Effects of Mutated Titin (IMAGE) Rockefeller University Press Caption Soleus muscle fibers (green) are decreased in mice with a mutated form of the muscle protein titin (right). A Journal of General Physiology study shows that changes in the elasticity of titin can be a trigger for pathological changes in muscle. Credit Buck et al., 2014 Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. 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.