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. 2014 Feb 13;9(2):e89109. doi: 10.1371/journal.pone.0089109

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© 2014 Wadood 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) Three-dimensional representation of the interactions of reference ligand and receptor protein NS3/4A protease. (B) Three-dimensional pharmacophore model generated from complex structure of HCV NS3/4A protease. Cyan, brown, purple and green colors represent hydrogen bond acceptor, heavy atom, lone pair or active hydrogen and hydrophobic features respectively.