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Computational Tools for Structure-Guided Drug Discovery.
Computational Tools for Structure-Guided Drug Discovery.
상세정보
- 자료유형
- 학위논문
- Control Number
- 0017165046
- International Standard Book Number
- 9798346568339
- Dewey Decimal Classification Number
- 571.6
- Main Entry-Personal Name
- Powers, Alexander.
- Publication, Distribution, etc. (Imprint
- [S.l.] : Stanford University., 2024
- Publication, Distribution, etc. (Imprint
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- Physical Description
- 148 p.
- General Note
- Source: Dissertations Abstracts International, Volume: 86-05, Section: B.
- General Note
- Advisor: Dror, Ron.
- Dissertation Note
- Thesis (Ph.D.)--Stanford University, 2024.
- Summary, Etc.
- 요약Most drugs function by binding to proteins and modulating their function. Computational methods that model the atomic interactions between drug molecules and proteins promise to greatly accelerate drug discovery. This work discusses the application and development of several computational methods, involving molecular simulations and machine learning, for understanding and designing novel therapeutics.First, we apply atomic-level simulations to investigate mechanisms that contribute to drug selectivity and avoid undesired side-effects. We reveal the structural basis for the selectivity of a long-studied Schizophrenia drug between structurally similar muscarinic acetylcholine receptors. We validate this mechanism experimentally through mutagenesis and use it to design molecules with altered selectivity profiles.Second, we develop a series of methods that use machine learning to assist in structure-guided drug design. Using the three-dimensional structure of a target protein, these methods aim to generate novel and diverse drug-like molecules that bind to the target. We compare several approaches, including a fragment-based approach specifically designed to incorporate chemical intuition.Third, we investigate new molecular mechanisms by which drug molecules can modulate the signaling of G-protein coupled receptors. Using atomic-level simulations, we found that certain ligands can trigger activation of free fatty acid receptor 1 by directly rearranging an intracellular loop that interacts with G-proteins. We further supported this non-canonical mechanism through targeted mutagenesis; specific mutations which disrupt interactions with the intracellular loop convert these agonists into inverse agonists in in vitroexperiments.This work highlights how computational tools, combined with complementary experimental methods, can accelerating drug discovery by elucidating molecular mechanisms as well as directly facilitating structure-guided drug design.
- Subject Added Entry-Topical Term
- Signal transduction.
- Subject Added Entry-Topical Term
- Mutation.
- Subject Added Entry-Topical Term
- Carbon.
- Subject Added Entry-Topical Term
- Binding sites.
- Subject Added Entry-Topical Term
- Medical research.
- Subject Added Entry-Topical Term
- Drug development.
- Subject Added Entry-Topical Term
- Biology.
- Subject Added Entry-Topical Term
- Medicine.
- Subject Added Entry-Topical Term
- Pharmaceutical sciences.
- Added Entry-Corporate Name
- Stanford University.
- Host Item Entry
- Dissertations Abstracts International. 86-05B.
- Electronic Location and Access
- 로그인을 한후 보실 수 있는 자료입니다.
- Control Number
- joongbu:655476
MARC
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■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a571.6
■1001 ▼aPowers, Alexander.
■24510▼aComputational Tools for Structure-Guided Drug Discovery.
■260 ▼a[S.l.]▼bStanford University. ▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a148 p.
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-05, Section: B.
■500 ▼aAdvisor: Dror, Ron.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2024.
■520 ▼aMost drugs function by binding to proteins and modulating their function. Computational methods that model the atomic interactions between drug molecules and proteins promise to greatly accelerate drug discovery. This work discusses the application and development of several computational methods, involving molecular simulations and machine learning, for understanding and designing novel therapeutics.First, we apply atomic-level simulations to investigate mechanisms that contribute to drug selectivity and avoid undesired side-effects. We reveal the structural basis for the selectivity of a long-studied Schizophrenia drug between structurally similar muscarinic acetylcholine receptors. We validate this mechanism experimentally through mutagenesis and use it to design molecules with altered selectivity profiles.Second, we develop a series of methods that use machine learning to assist in structure-guided drug design. Using the three-dimensional structure of a target protein, these methods aim to generate novel and diverse drug-like molecules that bind to the target. We compare several approaches, including a fragment-based approach specifically designed to incorporate chemical intuition.Third, we investigate new molecular mechanisms by which drug molecules can modulate the signaling of G-protein coupled receptors. Using atomic-level simulations, we found that certain ligands can trigger activation of free fatty acid receptor 1 by directly rearranging an intracellular loop that interacts with G-proteins. We further supported this non-canonical mechanism through targeted mutagenesis; specific mutations which disrupt interactions with the intracellular loop convert these agonists into inverse agonists in in vitroexperiments.This work highlights how computational tools, combined with complementary experimental methods, can accelerating drug discovery by elucidating molecular mechanisms as well as directly facilitating structure-guided drug design.
■590 ▼aSchool code: 0212.
■650 4▼aSignal transduction.
■650 4▼aMutation.
■650 4▼aCarbon.
■650 4▼aBinding sites.
■650 4▼aMedical research.
■650 4▼aDrug development.
■650 4▼aBiology.
■650 4▼aMedicine.
■650 4▼aPharmaceutical sciences.
■690 ▼a0306
■690 ▼a0564
■690 ▼a0572
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g86-05B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17165046▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.