PubAg

Main content area

Endochitinases from Castanea crenata cotyledons

Author:
Collada, C., Casado, R., Aragoncillo, C.
Source:
Journal of agricultural and food chemistry 1993 v.41 no.10 pp. 1716-1718
ISSN:
0021-8561
Subject:
Castanea crenata, chitinase, isozymes, molecular weight, enzyme activity, cotyledons, amino acids, amino acid composition
Abstract:
Three constitutive endochitinase isoforms were purified from the cotyledons of Castanea crenata. All three isoforms are basic with pI between 8.5 and 9, possess approximate molecular weights of 25 000, 26 000, and 25 500, and have been named Cha, Chb, and Chc, respectively. All isoforms cross-reacted with antibodies raised against Ch1 chitinase previously purified from Castanea sativa. The molecular weights and amino acid compositions of Cha, Chb, and Chc suggest that these proteins belong to the class II endochitinases.
Agid:
1367878