Active Orb2 Amyloid (IMAGE) Stowers Institute for Medical Research Caption Atomic structure of biochemically active Orb2 amyloid reveals the stacked three-fold helical symmetry of the filament core. Inset: A reconstruction of the Orb2 amyloid filament core was generated using cryo-electron microscopy combined with image processing. Credit Si Lab, Stowers Institute for Medical Research 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.