Proline Image (IMAGE) University of Missouri-Columbia Caption In humans, proline is important for suppression of cancer, cell death and oxidation. Understanding the structure of this enzyme will help scientists better understand how it functions and develop drugs that may inhibit its catalytic function. Credit Photo courtesy of MU News Bureau. 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.