Obstacles (IMAGE) Rice University Caption Obstacles that often block proteins from quickly finding their targets on DNA can also shorten the time they require to find the target, according to researchers at Rice University. Credit Alexey Shvets/Rice 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.