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Selected structures of α/β-hydrolases TE domains in PKS system. Lid region are shown in red and catalytic residues are shown in magentas. (A) structure of pikromycin TE (type I). PDB code: 1MNQ. (B) surface representation of pikromycin TE dimer. (C) structure of Rifamycin TE (Type II). PDB code: 3FLA. (D) a surface representation of rifamycin TE. (E) Catalytic mechanism of α/β-hydrolases TE (Hydrolysis vs. macrocyclization). 215×190mm (300 × 300 DPI).
