Glycoside Hydrolase Family 55

This page is currently under construction. This means that the Responsible Curator has deemed that the page's content is not quite up to CAZypedia's standards for full public consumption. All information should be considered to be under revision and may be subject to major changes.

• Authors: ^^^Takuya Ishida^^^ and ^^^Kiyohiko Igarashi^^^
• Responsible Curator: ^^^Shinya Fushinobu^^^

---

Glycoside Hydrolase Family 55
Clan	none
Mechanism	inverting
Active site residues	not known
CAZy DB link
http://www.cazy.org/fam/GH55.html

Substrate specificities

Glycoside Hydrolases of family 55 exclusively consists of β-1,3-glucanases, including both exo- and endo-enzymes, at this moment.

Three-dimensional structures

Two tandem β-helix domains positioned side by side. The active site is located between them.

Family Firsts

First sterochemistry determination

Cite some reference here, with a short explanation.

First catalytic nucleophile identification

First general acid/base residue identification

First 3-D structure

β-1,3-glucanase Lam55A from Phanerochaete chrysosporium K-3 by X-ray crystallography (PDB 3eqn and PDB 3eqo) [1].

References

1. Ishida T, Fushinobu S, Kawai R, Kitaoka M, Igarashi K, and Samejima M. (2009). Crystal structure of glycoside hydrolase family 55 {beta}-1,3-glucanase from the basidiomycete Phanerochaete chrysosporium. J Biol Chem. 2009;284(15):10100-9. DOI:10.1074/jbc.M808122200 |