KRAS Protein (IMAGE) University of Eastern Finland Caption A mutation at the amino acid glycine 12 (orange) of the KRAS protein (purple) has an effect on KRAS dynamics. Credit Tatu Pantsar Usage Restrictions Please mention the 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.