Comparative characteristics of chymotrypsin covalently bound on chemically and enzymatically oxidized agaroses

Autor: Kamen Voivodov, Nikolina Stambolieva, Jaroslava Turková
Rok vydání: 1991
Předmět:
Zdroj: Biotechnology Techniques. 5:219-222
ISSN: 1573-6784
0951-208X
Popis: The enzymatically activated agaroses compared with chemically activated show 25 fold lower amount of generated aldehyde groups, 33 fold lower binding capacity for chymotrypsin, 3 fold lower proteolytic as well as amidolytic activity toward AntAlaAlaPheNA of the corresponding fixed enzyme. Trans-cinnamoylimidazole titration data demonstrate 100% active bound enzyme in the case of enzymatically oxidized agaroses and 57% for chemically oxidized. The enzymic activation offers a small number of sites for ligand attachment in a unique microenvironment. The chemical activation yields a suitable matrix for effective chymotrypsin immobilization.
Databáze: OpenAIRE