4-galactosyl-N-acetylglucosaminide 3-alpha-L-fucosyltransferase 9 (FUT9)

Transfers a fucose into lacto-N-neotetraose but not to alpha2,3-sialyl lacto-N-neotetraose or lacto-N-tetraose. Can catalyze the last step in the biosynthesis of Lewis antigen, the addition of a fucose to precursor polysaccharides.

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