ID 2.4.1.43 DE polygalacturonate 4-alpha-galacturonosyltransferase. CA [(1->4)-alpha-D-galacturonosyl](n) + UDP-alpha-D-galacturonate = [(1->4)- CA alpha-D-galacturonosyl](n+1) + H(+) + UDP. DR Q9LE59, GAUT1_ARATH; Q949Q1, GAUTB_ARATH; //