ABSTRACT
The classification above is currently under revision as increased information about cellulase specificity, hydrolytic activity, products formation, hydrolytic stereochemistry, and structural similarities is gathered. The current trend in the literature is to classify cellulases based on the comparison of their deduced amino acid sequences. In 1993 the comparison of 120 primary sequences of cellulases and xylanases defined a total of 11 families (designated A-K) (1).
