ATE1 enzymatic function (IMAGE) University of Maryland Baltimore County Caption An illustration of the basic function of the enzyme ATE1. ATE1 effects the transfer of arginine (small green circle) from a tRNA (blue blob, left) to another protein (blue blob, right). A new paper in Nature Communications finds that ATE1 binds iron-sulfur clusters (red and yellow circles at left), which dramatically increase its efficacy. The same paper found that ATE1 is sensitive to oxygen, indicating it may moderate the cell's response to oxidative stress. (Illustration by Verna Van) Credit Verna Van Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.