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Active site interactions with Pi ligands. Stereoview of the interactions between the active site residues and the phosphate molecules generated by POVScript+ The refined coordinates of the backbone and side chains are overlaid on the 2Fo-Fc electron density map (grey) shown contoured at 1.5σ. The two phosphate molecules are overlaid on the composite omit map (magenta) contoured at 1.0σ. Residues labeled with (*) indicate they are donated from an adjacent catalytic chain.
