Inhibition of Proprotein Convertases Abrogates Processing of the Middle Eastern Respiratory Syndrome Coronavirus Spike Protein in Infected Cells but Does Not Reduce Viral Infectivity. - Gierer, Stefanie; Müller, Marcel A.; Heurich, Adeline; Ritz, Daniel; Springstein, Benjamin L.; Karsten, Christina B.; Schendzielorz, Alexander; Gnirß, Kerstin; Drosten, Christian; Pöhlmann, Stefan (Journal of Infectious Diseases, 2015)