Scientist at work (IMAGE) Max Planck Institute for Marine Microbiology Caption Marie-Caroline Müller transferring glutamine synthetase protein crystals in liquid nitrogen prior to a synchrotron experiment Credit J. Mills/Max Planck Institute for Marine Microbiology Usage Restrictions Only to be used in the context of this publication and citing the correct copyright. License Original 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.