The Enzyme Database

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Accepted name: endo-chitodextinase
Reaction: Hydrolysis of chitodextrins, releasing N,N′-diacetylchitobiose and small amounts of N,N′,N′′-triacetylchitotriose.
Other name(s): endo I (gene name); chitodextrinase (ambiguous); endolytic chitodextrinase; periplasmic chitodextrinase
Systematic name: (1→4)-2-acetamido-2-deoxy-β-D-glucan diacetylchitobiohydrolase (endo-cleaving)
Comments: 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, 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, exo-chitinase (non-reducing end), and EC, exo-chitinase (reducing end).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Bassler, B.L., Yu, C., Lee, Y.C. and Roseman, S. Chitin utilization by marine bacteria. Degradation and catabolism of chitin oligosaccharides by Vibrio furnissii. J. Biol. Chem. 266 (1991) 24276–24286. [PMID: 1761533]
2.  Keyhani, N.O. and Roseman, S. The chitin catabolic cascade in the marine bacterium Vibrio furnissii. Molecular cloning, isolation, and characterization of a periplasmic chitodextrinase. J. Biol. Chem. 271 (1996) 33414–33424. [DOI] [PMID: 8969204]
[EC created 2017]

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