FIC Toxins (IMAGE) University of Basel Caption FIC toxins modify the spatial structure of the DNA (blue) of bacteria (red: cell membrane). Credit © University of Basel, Biozentrum Usage Restrictions Give adequate credit to the original author 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.