label: L-seryl-[EGF-like domain protein] + GDP-beta-L-fucose = 3-O-(alpha-L-fucosyl)-L-seryl-[EGF-like domain protein] + GDP + H(+)
label_lc: l-seryl-[egf-like domain protein] + gdp-beta-l-fucose = 3-o-(alpha-l-fucosyl)-l-seryl-[egf-like domain protein] + gdp + h(+)