Endoproteinase Arg-C from mouse submaxillary gland

Endoproteinase Arg-C from mouse submaxillary gland has been used to study the syncytium formation in MERS-CoV (middle East respiratory syndrome coronavirus)-infected Vero cells in the presence of exogenous proteases. It has been used for the digestion of Rpl23ab (ribosomal protein L23ab)-containing fraction for LC-MS (liquid chromatography–mass spectrometry)/MS analysis.

Endoproteinase Arg-C is a serine endoprotease from mouse submaxillary gland which hydrolyzes peptide bonds at the carboxyl side of arginyl residues. The enzyme has been shown to cleave Lys-Lys and Lys-Arg bonds, and all Arg-X bonds may not be hydrolyzed.

One unit will hydrolyze 1.0 μmole of Nα-p-tosyl-L-arginine methyl ester per min at pH 8.0 at 25 °C.