Acetylxylan esterase involved in the hydrolysis of xylan, a major structural heterogeneous polysaccharide found in plant biomass representing the second most abundant polysaccharide in the biosphere, after cellulose. Degrades acetylated xylans by cleaving acetyl side groups from the hetero-xylan backbone. Deacetylation of xylans and xylo-oligosaccharides. Optimum pH is 7.5. Optimum temperature is 49 degrees Celsius. Glycan degradation; xylan degradation. Monomer. Belongs to the carbohydrate esterase 1 (CE1) family. AxeA subfamily. The C-terminal carbohydrate-binding module (CBM) extension found in some acetylxylan esterases from other species is absent.