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Electron density and interactions for the UDP bound to reduced TcUGM. (A) Stereographic view of the TcUGM active site. The cage represents a simulated annealing σA-weighted Fo − Fc omit map contoured at 3.0 σ. (B) Schematic diagram of protein-UDP interactions in TcUGM. Backbone interactions are indicated by N in parentheses.
