GroEL/ES Nano-Cage (image) Max Planck Institute of Biochemistry Caption This image shows a GroEL/ES nano-cage (light blue and white) with encapsulated substrate protein (orange). Credit Image: Andreas Bracher / Copyright: MPI of Biochemistry Usage Restrictions Please ask permission before you use the image in any form. 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.