Proteins (2 of 2) (IMAGE) Rice University Caption A combination of experimental and theoretical studies, in particular direct coupling analysis, revealed detailed interactions between NAF-1 (magenta) and Bcl-2 (blue), two proteins involved in cellular life-and-death decisions. Credit Mark Paddock, Patricia Jennings/UCSD 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.