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. 2014 Aug 7;10(8):e1003767. doi: 10.1371/journal.pcbi.1003767

Figure 1. A cartoon representation of the choline-binding protein ChoX in (a) apo-closed (PDB ID: 2RF1) and (b) holo-closed (PDB ID: 2REG) states.

Figure 1

The ligand choline is shown in red spheres.