Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/227568
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dc.titleSTRUCTURE-BASED COMPUTATIONAL MODELING OF PROTEIN-LIGAND INTERACTIONS - APPLIED TO PROTEINS INVOLVED IN HUMAN DISEASES
dc.contributor.authorSRDAN MASIREVIC
dc.date.accessioned2022-06-30T18:00:32Z
dc.date.available2022-06-30T18:00:32Z
dc.date.issued2021-11-10
dc.identifier.citationSRDAN MASIREVIC (2021-11-10). STRUCTURE-BASED COMPUTATIONAL MODELING OF PROTEIN-LIGAND INTERACTIONS - APPLIED TO PROTEINS INVOLVED IN HUMAN DISEASES. ScholarBank@NUS Repository.
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/227568
dc.description.abstractProtein structure-based virtual screening of large chemical libraries is commonly performed against static X-ray and NMR structures. However, proteins are dynamic macromolecules occupying different conformational spaces. Consequently, different protein structures of the same protein could exhibit different performances in ligand discovery. In this thesis, we show that X-ray holo structures of proteins perform better than NMR holo structures in virtual ligand screening, and we find that among different features, hydrogen bonds in combination with hydrophobic contacts contribute the most to the virtual screening performance of both types of structures. Furthermore, to address protein conformational flexibility in virtual screening, we show that protein structural models generated by side-chain prediction methods can perform better in virtual ligand screening than X-ray and NMR structures. Finally, protein structure-based virtual screening was performed against an important cancer target, human kidney-type glutaminase, which identified novel binders that manifest inhibition potential.
dc.language.isoen
dc.subjectDocking, Ligand Discovery, Computational biology, Protein flexibility, Virtual screening, Drug Discovery
dc.typeThesis
dc.contributor.departmentBIOLOGICAL SCIENCES
dc.contributor.supervisorHao Fan
dc.contributor.supervisorJayaraman Sivaraman
dc.description.degreePh.D
dc.description.degreeconferredDOCTOR OF PHILOSOPHY (FOS)
dc.identifier.orcid0000-0001-7649-6477
Appears in Collections:Ph.D Theses (Open)

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