EC Explorer

3.2.1.202

endo-chitodextinase

Hydrolysis of chitodextrins, releasing N,N′-diacetylchitobiose and small amounts of N,N′,N′′-triacetylchitotriose.

endo I (gene name), chitodextrinase (ambiguous), endolytic chitodextrinase, periplasmic chitodextrinase

(1→4)-2-acetamido-2-deoxy-β-D-glucan diacetylchitobiohydrolase (endo-cleaving)

The enzyme, characterized from the bacterium Vibrio furnissii, is an endo-cleaving chitodextrinase that participates in the the chitin catabolic pathway found in members of the Vibrionaceae. Unlike EC 3.2.1.14, chitinase, it has no activity on chitin. The smallest substrate is a tetrasaccharide, and the final products are N,N′-diacetylchitobiose and small amounts of N,N′,N′′-triacetylchitotriose. cf. EC 3.2.1.200, exo-chitinase (non-reducing end), and EC 3.2.1.201, exo-chitinase (reducing end).

created 2017