Xylan endo-1,3-β-xylosidase

endo-1,3-β-Xylanase, [xylanase (ambiguous), endo-1,3-β-xylosidase, 1,3-β-xylanase, 1,3-xylanase, β-1,3-xylanase, endo-β-1,3-xylanase, 1,3-β- D -xylan xylanohydrolase, xylan endo-1,3-β-xylosidase (misleading)] is an enzyme with systematic name 3-β- D -xylan xylanohydrolase. It catalyses the following chemical reaction:


 * Random endohydrolysis of (1→3)-β- D -glycosidic linkages in (1→3)-β- D -xylans

The enzyme is found mostly in marine bacteria, which break down the β(1,3)-xylan found in the cell wall of some green and red algae. It produces mainly xylobiose, xylotriose and xylotetraose.