Reaction catalyzed by 4-galactosyl-N-acetylglucosaminide 3-alpha-L-fucosyltransferase (2.4.1.152)

		+			=			+
	GDP-fucose	+		Galbeta(1,3)GlcNAcOMe	=		GDP	+		Galbeta(1,4)(Fucalpha(1,3))GlcNAcOMe