Interaction of Hsp90, P23 and ATP (image) Technical University of Munich (TUM) Share Print E-Mail Caption Without P23 the heat shock enzyme effectively runs on idle. When P23 joins the game, it is like shifting into gear. Credit Bjoern Hellenkamp / TUM Usage Restrictions None Share Print E-Mail 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.