Reaction catalyzed by 4-galactosyl-N-acetylglucosaminide 3-alpha-L-fucosyltransferase (2.4.1.152)
+
=
+
GDP-fucose
+
GalNAcbeta1-4GlcNAcbeta1-R
=
GDP
+
GalNAcbeta1-4[Fucalpha1-3]GlcNAcbeta1-R