Auxiliary Activity Family 5

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• Author: ^^^Maria Cleveland^^^ and ^^^Yann Mathieu^^^
• Responsible Curator: ^^^Harry Brumer^^^

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Auxiliary Activity Family AA5
Fold	Seven-bladed β-propeller
Mechanism	Copper Radical Oxidase
Active site residues	known
CAZy DB link
https://www.cazy.org/AA5.html

Substrate specificities

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Authors may get an idea of what to put in each field from Curator Approved Auxiliary Activity Families and Glycoside Hydrolase Families. (TIP: Right click with your mouse and open this link in a new browser window...)

In the meantime, please see these references for an essential introduction to the CAZy classification system: [1, 2].

Kinetics and Mechanism

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Catalytic Residues

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Three-dimensional structures

AA5 share a seven-bladed β-propeller fold [3, 4, 5] as the catalytic domain containing the active site.

Family Firsts

First stereochemistry determination

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First catalytic nucleophile identification

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First general acid/base residue identification

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First 3-D structure

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References

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1. Davies, G.J. and Sinnott, M.L. (2008) Sorting the diverse: the sequence-based classifications of carbohydrate-active enzymes. The Biochemist, vol. 30, no. 4., pp. 26-32. Download PDF version.

10. Mathieu, Y., Offen, W. A., Forget, S. M., Ciano, L., Viborg, A. H., Blagova, E., Henrissat, B., Walton, P.H, Davies, G.J, and Brumer, H. (2020). Discovery of a fungal copper radical oxidase with high catalytic efficiency toward 5-hydroxymethylfurfural and benzyl alcohols for bioprocessing. ACS Catalysis, 10(5), 3042-3058. https://pubs.acs.org/doi/abs/10.1021/acscatal.9b04727

12. Ögel, Z. B.; Brayford, D.; McPherson, M. J., (1994). Cellulose-triggered sporulation in the galactose oxidase-producing fungus Cladobotryum (Dactylium) dendroides NRRL 2903 and its re-identification as a species of Fusarium. Mycol. Res., 98 (4), 474-480. https://doi.org/10.1016/j.pep.2014.12.010