since the ca2+-activated proteinase is very likely to be a trypsin-like enzyme , with a preference for arginyl and lysyl peptide bonds , the results indicate that the arginine residues of the amino-terminal polypeptide of vimentin and desmin are highly essential for filament assembly but largely dispensable for the binding of both proteins to nucleic acids .
C0030946
proteinase
C0014442
enzyme