An Illustration Showing the 'Cluedo' Game of Proprotein Convertase Activity (image) Ecole Polytechnique Fédérale de Lausanne Share Print E-Mail Caption This is an illustration showing the 'Cluedo' game of proprotein convertase activity. Credit D.B. Constam/EPFL Usage Restrictions Non-commercial purposes only 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.