Muscle Sarcomeres (IMAGE) University of Vienna Caption The illustration shows a surface representation of the alpha-actinin dimer against a background of muscle sarcomeres viewed under the electron microscope. The sarcomeres display a typical striated pattern, and are connected via joint Z-discs, seen as dark black and grey diagonal stripes. Credit Mathias Gautel and Andrea Ghisleni, KCL, Nikos Pinotsis and Kristina Djinovic-Carugo, MFPL Usage Restrictions The image may only be used with appropriate caption or credit. 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.