In enzymology, a xyloglucan-specific exo-beta-1,4-glucanase (EC 126.96.36.199) is an enzyme that catalyzes the chemical reaction
- xyloglucan + H2O xyloglucan oligosaccharides (exohydrolysis of 1,4-beta-D-glucosidic linkages in xyloglucan)
Thus, the two substrates of this enzyme are xyloglucan and H2O, and its products are xyloglucan oligosaccharides (exohydrolysis of 1,4-beta-D-glucosidic linkages in xyloglucan).
This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is [(1->6)-alpha-D-xylo]-(1->4)-beta-D-glucan exo-glucohydrolase. This enzyme is also called Cel74A.
- Grishutin SG, Gusakov AV, Markov AV, Ustinov BB, Semenova MV, Sinitsyn AP (November 2004). "Specific xyloglucanases as a new class of polysaccharide-degrading enzymes". Biochimica et Biophysica Acta (BBA) - General Subjects. 1674 (3): 268–81. doi:10.1016/j.bbagen.2004.07.001. PMID 15541296.