2.4.1.65 D112E muation decreases activity of the enzyme and does not interfere with H-type 1/H-type 2 acceptors 637646 2.4.1.65 D125E site-directed mutagenesis of FucT-V, the mutant activity is similar to the wild-type enzyme activity 693000 2.4.1.65 D336A fucosyltransferase III mutant enzyme shows reduced activity with a variety of acceptors, 40fold reduction in activity for Fucalpha(1,2)Galbeta(1,3)GlcNAc. 4fold reduction affinity for GDP-fucose. The single amino acid site Asp336 of FucT III and Ala349 of FucT V constitutes the only difference in the sequence of FucT III and V over the final 210 COOH-terminal amino acid residues, impacts the acceptor substrate profiles of FucT III and FuvT V 637645 2.4.1.65 E111D site-directed mutagenesis of FucT-VI, the mutant activity is similar to the wild-type enzyme activity 693000 2.4.1.65 FT3dc mutant where the cytoplasmic domain (Asp-2 to Trp-13) is deleted 661236 2.4.1.65 I126V site-directed mutagenesis of FucT-V, the mutant activity is similar to the wild-type enzyme activity 693000 2.4.1.65 K73T site-directed mutagenesis of FucT-VI, the mutant shows increased activity compared to the wild-type enzyme 693000 2.4.1.65 K73T/E111D site-directed mutagenesis of FucT-VI, the mutant shows increased activity compared to the wild-type enzyme 693000 2.4.1.65 K73T/I75V/T87A insertion mutagenesis of FucT-VI, the mutant shows altered substrate specificity compared to the wild-type enzyme 693000 2.4.1.65 K73T/R110W site-directed mutagenesis of FucT-VI, the mutant shows increased activity compared to the wild-type enzyme 693000