ID 2.3.1.143 DE beta-glucogallin--tetrakisgalloylglucose O-galloyltransferase. CA 1,2,3,6-tetrakis-O-galloyl-beta-D-glucose + 1-O-galloyl-beta-D-glucose = CA 1,2,3,4,6-pentakis-O-galloyl-beta-D-glucose + D-glucose + H(+). //