Marten Exterkate (IMAGE) University of Groningen Caption This is Marten Exterkate, first author of the study on the promiscuous archaeal enzyme that produces cardiolipins Credit University of Groningen Usage Restrictions With credit 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.