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. 2009 May 18;4(5):e5582. doi: 10.1371/journal.pone.0005582

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Crow et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(a) Cif_Pl (b) Cif_Bp. Solvent-accessible surfaces were calculated with a 1.2 Å solvent probe radius. Surface colourings are contoured over the same range for each structure (−90 to +90 k_bT/e_c). The location of the catalytic cysteine residue is shown by the yellow sphere.