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. 2009 Mar 20;5(3):e1000344. doi: 10.1371/journal.ppat.1000344

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Yam 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) DHSA in molecule A. (B) DHSA in molecule B. The (2F _o−F _c) electron density (blue, contour level = 1σ) was calculated without ligand to remove bias. (C) Stereo view of a structural superposition of DHSA in the two molecules in the asymmetric unit. HsaC:DHSA in molecule A is colored in dark green/yellow. HsaC:DHSA in molecule B is colored in light green/orange.