Acetylxylan esterase

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acetylxylan esterase
Acetylxylan esterase oktamer, Geobacillus stearothermophilus
EC no.
IntEnzIntEnz view
ExPASyNiceZyme view
MetaCycmetabolic pathway
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

In enzymology, an acetylxylan esterase (EC is an enzyme that catalyzes a chemical reaction, the deacetylation of xylans and xylo-oligosaccharides.

This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name of this enzyme class is likewise acetylxylan esterase.

Structural studies[edit]

As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes 1QOZ, 2C71, 2C79, and 2CC0.


  • Sundberg M, Poutanen K (1991). "Purification and properties of two acetylxylan esterases of Trichoderma reesei". Biotechnol. Appl. Biochem. 13: 1–11.
  • Poutanen K, Sundberg M, Korte H, Puls J (1990). "Deacetylation of xylans by acetyl esterases of Trichoderma reesei". Appl. Microbiol. Biotechnol. 33 (5): 506–510. doi:10.1007/bf00172542. S2CID 2757027.
  • Margolles-Clark E, Tenkanen M, Soderlund H, Penttila M (1996). "Acetyl xylan esterase from Trichoderma reesei contains an active-site serine residue and a cellulose-binding domain". Eur. J. Biochem. 237 (3): 553–60. doi:10.1111/j.1432-1033.1996.0553p.x. PMID 8647098.