Exoglucanase and Xylanase enzyme (None standard; sometimes referred to as CBH (cellobiohydrolase for exoglucanase) and XYN (xylanase), but these are family not target-specific. No universal abbreviations for combined "exoglucanase/xylanase.")

Exoglucanase is an enzyme (EC 3.2.1.91), classed as a glycoside hydrolase, that hydrolyzes non-reducing ends of crystalline cellulose polymers, releasing cellobiose or glucose. Xylanase (endo-1,4-β-xylanase, EC 3.2.1.8) is another glycoside hydrolase, specialized in breaking down the β-1,4-xylosidic bonds of xylan, the major component of hemicellulose. Both enzymes are crucial for the degradation of plant cell walls and are commonly co-produced by bacteria and fungi, acting synergistically to convert biomass into fermentable sugars. They are widely used in biofuel production, animal feed, food processing (improving dough properties), and the paper industry. While not classic therapeutic targets, they are industrially and biotechnologically important, and their activity is a determinant of the efficiency of lignocellulosic bioprocessing. If you wish to extract canonical entries for future use, these two targets should be handled separately as "Exoglucanase" and "Xylanase enzyme."

Other names

Cellobiohydrolase (for exoglucanase)Xylan endo-1,4-beta-xylanaseCellulase (general family for exoglucanase)Hemicellulase (general family for xylanase)CBH (for exoglucanase, not universal)XYN (for xylanase, not universal)

Exoglucanase: Cleaves glucose units from the non-reducing ends of crystalline cellulose, producing cellobiose or glucose. Xylanase: Hydrolyzes β-1,4-xylosidic linkages in xylan to produce oligosaccharides. Synergistic action with endoglucanases and β-glucosidases for efficient plant biomass degradation.