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Stereoscopic model of the ThiF-ThiS-COOAMP intermediate. Oxygen is colored red, nitrogen blue, carbon grey, phosphorous magenta, and sulfur yellow. The ThiI Cys-peroxide, labeled ThiI, is modeled in the approximate orientation for nucleophilic attack and shown as transparent. Water 52 is shown as a red sphere. Residues from ThiS are labeled with _S and those from ThiF with _F.
