INHIBITORY ACTIVITIES OF PARTIALLY DEGRADED SALIVARY CYSTATINS

1. Aminoterminally truncated forms of cystatin S and cystatin SN had h igher inhibition constants for ficin, but lower ones for cathepsin C ( dipeptidyl peptidase I) as compared to their respective full-sized for m. 2. Cystatin SN still retained the inhibitory activity for ficin aft er reduction and carboxymethylation, although the inhibition constant increased.