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Structural comparison among FUT8-GDP-acceptor complex (PDB code: 6TKV, green), POFUT-GDP-Fuc complex (PDB code: 5UXH, magenta) and POFUT2-GDP-Fuc complex (PDB code: 4AP6, yellow). Protein molecules are shown in semi-transparent surface and ribbon models. Acceptor and GDP-Fuc are shown in stick models. The catalytic residues, E373 (FUT8), N46 (POFUT1) and E54 (POFUT2), located at the rim of catalytic center are labeled. An arrow indicates C6 of Fuc.
