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. 2010 Feb 23;66(Pt 3):215–218. doi: 10.1107/S1744309109053494

Figure 2.

Figure 2

Stabilization of the LmPYK crystal lattice as a result of cocrystallization with PTS. (a, b) Two orthogonal views of two LmPYK tetramers observed in the crystal lattice stabilized by PTS (shown as spheres). The orientations of the LmPYK tetramers are shown as blocks and repetition of LmPYK in this PTS-stabilized manner forms the crystal lattice (c). (d) A schematic drawing of a PTS molecule and the stacking interactions of Arg194 with pyrene. (e) A molecule of PTS lies at the interface between two protein molecules (blue and green) in the LmPYK crystal. The PTS molecule is shown with electron density from a 2F o − F c map. The map was calculated at 2.1 Å and is contoured at 1σ.