A virtual screening procedure combining pharmacophore filtering and molecular docking with the lie method
Başlık çevirisi mevcut değil.
- Tez No: 402991
- Danışmanlar: DR. XAVIER DAURA
- Tez Türü: Doktora
- Konular: Biyoteknoloji, Tıbbi Biyoloji, Biotechnology, Medical Biology
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2012
- Dil: İngilizce
- Üniversite: Universitat Autónoma de Barcelona
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 150
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Özet (Çeviri)
Virtual screening plays a central role in the world of drug discovery today. In silico testing allows to screen millions of small molecules and to choose only the most promising ones for experimental testing. To find potential drug candidates, it is crucial to bring together individual and complementary computational tools. In this thesis, I describe an automated virtual screening procedure that combines pharmacophore modeling and searches, high-throughput molecular docking, consensus scoring and binding free energy estimation with the linear interaction energy (LIE) method through molecular dynamics simulations. One goal of this thesis was to build an evolving and versatile virtual screening methodology, which enables integration of different tools at different steps. The procedure that started as a combination of a simple size filter, molecular docking and consensus scoring, advanced into an elaborate and automated computational workflow with the addition of pharmacophore searches and binding free energy estimation with LIE. This integrated method intends to compensate for weaknesses of individual structure-based techniques and allows the evaluation and comparison of the performance and accuracy of these techniques. Another important goal was to apply the computational workflow to target proteins and find hits that could be drug candidates. Experimental testing performed for human acid β-Glucosidase and bleomycin hydrolase indicate that several small molecules selected by the computational workflow display micromolar inhibitory activity. The standard LIE method used in this work was applied to more than ten thousand ligand-protein complexes for three different targets, which is, to our knowledge, the first time application of LIE at such large scale.
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