MCR-1 Protein (IMAGE) University of Bristol Caption X-ray crystal structure of the catalytic domain of the MCR-1 protein. Credit Dr. Phil Hinchliffe Usage Restrictions Single use only - please do not archive 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.