L-threonyl-[EGF-like domain protein] + GDP-beta-L-fucose <=> 3-O-(alpha-L-fucosyl)-L-threonyl-[EGF-like domain protein] + GDP + H(+)
l-threonyl-[egf-like domain protein] + gdp-beta-l-fucose <=> 3-o-(alpha-l-fucosyl)-l-threonyl-[egf-like domain protein] + gdp + h(+)