Glycoside Hydrolase Family 19

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• Author: ^^^Vincent Eijsink^^^
• Responsible Curator: ^^^Vincent Eijsink^^^

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Glycoside Hydrolase Family GHnn
Clan	GH-x
Mechanism	retaining/inverting
Active site residues	known/not known
CAZy DB link
http://www.cazy.org/fam/GHnn.html

Substrate specificities

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Kinetics and Mechanism

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Catalytic Residues

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Three-dimensional structures

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Family Firsts

First primary sequence determination:

Bean leaf chitinase (Broglie et al., 1986)

First stereochemistry determination:

Yam chitinase, by NMR (Fukamizo et al., 1995) and Bean chitinase, by HPLC (Iseli et al., 1996)

First general base residue identification: Chitinase from barley; determination by site-directed mutagenesis (Andersen et al., 1997), structural analysis (Hart et al., 1993) and modelling (Brameld and Goddard, 1998). Additional support from structure determination and modelling of a papaya chitinase (Huet et al., 2008).

First general acid residue identification: Chitinase from barley; determination by site-directed mutagenesis (Andersen et al., 1997), structural analysis (Hart et al., 1993) and modelling (Brameld and Goddard, 1998). Additional support from structure determination and modelling of a papaya chitinase (Huet et al., 2008).

First 3-D structure: Barley chitinase (Hart et al., 1993).