(IMAGE) BIOSS - Centre for Biological Signalling Studies Caption Afp18 from the pathogen Yersinia ruckeri attaches a sugar molecule onto the host cell protein RhoA, thereby impairing the cell's ability to regulate actin. This has a strong effect on cell division as well as the metastasis of cancer. Credit Picture by: Dr. Thomas Jank Usage Restrictions The image may only be used with the appropriate caption and 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.