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The HIV-1 nucleocapsid protein (NC) is considered as an emerging drug target for the therapy of AIDS. Several studies have highlighted the crucial role of NC within the viral replication cycle. However, although NC inhibition has provided in vitro and in vivo antiretroviral activity, drug-candidates which interfere with NC functions are still missing in the therapeutic arsenal against HIV. Based on previous studies, where the dynamic behavior of NC and its ligand binding properties have been investigated by means of computational methods, here we used a virtual screening protocol for discovering novel antiretroviral compounds which interact with NC. The antiretroviral activity of virtual hits was tested in vitro, whereas biophysical studies elucidated the direct interaction of most active compounds with NC(11-55), a peptide corresponding to the zinc finger domain of NC. Two novel antiretroviral small molecules capable of interacting with NC are presented here.
Pubmed ID: 22634301 RIS Download
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Software that takes a macromolecular structure containing a bound ligand and identifies the key features on the ligand which are interacting with points on a protein. Its features include: automatic interpretation of PDB ligands using geometry, dictionaries and rule; advanced handling of co-factors, ions, water molecules and covalently bound ligands; pharmacophore export to Catalyst(tm), MOE(tm) and PHASE(tm) for virtual screening; and the ability to treat co-factors and water molecules as part of the ligand or part of the macromolecule.
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