Lisa Craig, Simon Fraser University (IMAGE) Simon Fraser University Caption Simon Fraser University professor Lisa Craig is part of an international research team that has revealed the most detailed structure to date for a Type IV pilus. Credit SFU Usage Restrictions None 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.