A Simple Solution to a Complex Problem (IMAGE) University of Freiburg Caption The crystal structure of the transport protein's substrate binding domain, which is responsible for absorbing the nutrient L-arabinofuranose. Credit Graphic: Claudia Jessen-Trefzer Usage Restrictions the image may only be used with appropriate caption or 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.