[Properties of alpha-chymotrypsin and cis-cinnamoylchymotrypsin in free, covalently bound to a carrier and microcapsulated states].

alpha-Chymotrypsin and its light-sensitive derivative, cis-cinnamoylchymotrypsin, free and immobilysed (by means of microcapsulation, covalent binding with sepharose 4B and p-aminobenzyl cellulose) are studied. Effect of pH on the hydrolysis rate of N-alpha-acetyl-L-tyrosine ethyl ester by different immobilized enzyme preparations, their acylation with isomeric mixture of cis- and trans-cinnamoylimidazole, reactivation of stable cis-derivatives of different enzyme samples and thermal stability of native and microcapsulated enzyme preparations are investigated.