alpha-L-Fuc-(1->2)-beta-D-Gal-(1->4)-[alpha-L-Fuc-(1->3)]-D-Glc + GDP + H(+) => alpha-L-Fuc-(1->2)-beta-D-Gal-(1->4)-D-Glc + GDP-beta-L-fucose
alpha-l-fuc-(1->2)-beta-d-gal-(1->4)-[alpha-l-fuc-(1->3)]-d-glc + gdp + h(+) => alpha-l-fuc-(1->2)-beta-d-gal-(1->4)-d-glc + gdp-beta-l-fucose
alpha-L-Fuc-(1->2)-beta-D-Gal-(1->4)-[alpha-L-Fuc-(1->3)]-D-Glc + GDP + H(+) => alpha-L-Fuc-(1->2)-beta-D-Gal-(1->4)-D-Glc + GDP-beta-L-fucose
alpha-l-fuc-(1->2)-beta-d-gal-(1->4)-[alpha-l-fuc-(1->3)]-d-glc + gdp + h(+) => alpha-l-fuc-(1->2)-beta-d-gal-(1->4)-d-glc + gdp-beta-l-fucose