Patent ID: 6087559
Filing Date: 2000-07-11
Classification: C12N

Abstract:
A transgenic plant cell containing a DNA molecule, encoding a transit sequence and a Streptococcus mutans glucosyltransferase B enzyme, wild type or mutant, wherein the mutant is I448V; D457N; D567T; K1014T; D457N/D567T; D457N/D571K; D567T/D571K; D567T/D571K/K1014T; I448V/D457N/D567T/D571K/K779Q/K1014T; or Y169A/Y170A/Y171A, wherein the transit sequence directs the enzyme to the amyloplast or vacuole and wherein the plant cell is derived from a plant selected from the group consisting of potato, cassava, sweet potato and sugar cane.