Professor Irene Coin (IMAGE) Universität Leipzig Caption Professor Irene Coin from Leipzig University is a pioneer in the field of genetic code expansion. Credit Christian Hüller/Leipzig University Usage Restrictions Only to be used in relation to this news release. License Original 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.