Reaction catalyzed by cellodextrin phosphorylase (2.4.1.49)
+
=
+
beta-D-Xyl(1-4)-D-Glc
+
alpha-D-xylose 1-phosphate
=
beta-D-Xyl-(1-4)-D-Xyl-beta-(1-4)-D-Glc
+
phosphate