TIGAR! TIGAR! (IMAGE) Brown University Caption Researchers at Brown have worked out the three-dimensional structure of an enzyme known as TIGAR. Because it is a marker for cell damage and repair, TIGAR could signal physicians that cancer may be developing. Credit Credit: Jogl Laboratory/Brown University 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.