Decanoyl-RVKR-CMK is a subtilisin/Kex2p-like proprotein convertase inhibitor; blocks activity of all seven convertases (PC1, PC2, PC4, PACE4, PC5, PC7 and furin)
Abolishes proET-1 processing in endothelial cells; inhibits regulated secretion of the neuronal polypeptide VGF in PC12 cells
Inhibits cleavage of glycoprotein B of human cytomegalovirus
Also inhibits cleavage of SARS-CoV-2 spike protein by furin and blocks viral cell entry (IC50 = 57 nM in plaque reduction assay).