Surrealistic take on the enzyme UBE2S (IMAGE) Technische Universität Dresden Caption Surrealistic take on the enzyme UBE2S, which regulates its lifetime by switching between a monomeric and a dimeric state. Credit © Anna Liess 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.