Siderophore Clasping Iron Atom (IMAGE) Washington University in St. Louis Caption The siderophore actinobactin secreted by the bacterium A. baumannii clutching an iron atom (orange) it has stolen from the host for the bacterium's benefit. Credit Tim Wencewicz Usage Restrictions Please 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.