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{{Infobox enzyme
| Name = Chitin disaccharide deacetylase
| EC_number = 3.5.1.105
| CAS_number = 
| IUBMB_EC_number = 3/5/1/105
| GO_code = 
| image = 
| width = 
| caption =
}}
'''Chitin disaccharide deacetylase''' ({{EC number|3.5.1.105}}, ''chitobiose amidohydolase'', ''COD'', ''chitin oligosaccharide deacetylase'', ''chitin oligosaccharide amidohydolase'') is an [[enzyme]] with system name ''2-(acetylamino)-4-O-(2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl)-2-deoxy-D-glucopyranose acetylhydrolase''.<ref>{{cite journal | title = Purification and characterization of <em>Vibrio parahaemolyticus</em> extracellular chitinase and chitin oligosaccharide deacetylase involved in the  production of heterodisaccharide from chitin |author = Kadokura, K., Rokutani, A., Yamamoto, M., Ikegami, T., Sugita, H., Itoi, S., Hakamata, W., Oku, T. and Nishio, T. |journal = Appl. Microbiol. Biotechnol. |year = 2007 |volume = 75 |pages = 357–365 |pmid = 17334758}}</ref><ref>{{cite journal | title = Heterodisaccharide 4-<em>O</em>-(<em>N</em>-acetyl-&beta;-<small>D</small>-glucosaminyl)-<small>D</small>-glucosamine is a specific inducer of chitinolytic enzyme production in Vibrios harboring  chitin oligosaccharide deacetylase genes |author = Hirano, T., Kadokura, K., Ikegami, T., Shigeta, Y., Kumaki, Y., Hakamata, W., Oku, T. and Nishio, T. |journal = Glycobiology |year = 2009 |volume = 19 |pages = 1046–1053 |pmid = 19553519}}</ref><ref>{{cite journal | title = Purification and properties of two deacetylases produced  by <em>Vibrio alginolyticus</em> <em>H</em>-8 |author = Ohishi, K., Yamagishi, M., Ohta, T., Motosugi, M., Izumida, H., Sano, H., Adachi, K., Miwa, T. |journal = Biosci. Biotechnol. Biochem. |year = 1997 |volume = 61 |pages = 1113–1117 |pmid = }}</ref><ref>{{cite journal | title = Cloning and sequencing of the deacetylase gene from <em>Vibrio alginolyticus</em> <em>H</em>-8 |author = Ohishi, K., Murase, K., Ohta, T. and Etoh, H. |journal = J. Biosci. Bioeng. |year = 2000 |volume = 90 |pages = 561–563 |pmid = 16232910}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]

: 2-(acetylamino)-4-O-[2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl]-2-deoxy-beta-D-glucopyranose + H<sub>2</sub>O <math>\rightleftharpoons</math> 2-(acetylamino)-4-O-(2-amino-2-deoxy-beta-D-glucopyranosyl)-2-deoxy-beta-D-glucopyranose + [[acetate]]

Chitin oligosaccharide deacetylase is present in  ''[[Vibrio]]'' strains. 

== References ==
{{reflist}}

== External links ==
* {{MeshName|Chitin+disaccharide+deacetylase}}

[[Category:Hydrolases acting on nonpeptide C-N bonds]]
[[Category:EC 3.5.1]]