ID 2.4.2.24 DE 1,4-beta-D-xylan synthase. CA [(1->4)-beta-D-xylan](n) + UDP-alpha-D-xylose = [(1->4)-beta-D- CA xylan](n+1) + H(+) + UDP. CC -!- Formerly EC 2.4.1.72. DR Q8L707, IRX14_ARATH; Q9ZQC6, IRX9_ARATH ; //