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Feature-Based Deep Learning Approaches to Facilitate Drug Discovery
Feature-Based Deep Learning Approaches to Facilitate Drug Discovery
Feature-Based Deep Learning Approaches to Facilitate Drug Discovery

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자료유형  
 학위논문 서양
최종처리일시  
20260202104701
ISBN  
9798280771284
DDC  
540
저자명  
Xue, Mingyi.
서명/저자  
Feature-Based Deep Learning Approaches to Facilitate Drug Discovery
발행사항  
[Sl] : The University of Wisconsin - Madison, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
166 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
주기사항  
Advisor: Huang, Xuhui.
학위논문주기  
Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
초록/해제  
요약Proteins, owing to their structural complexity and functional diversity, play a pivotal role in drug development. Recent advances in deep learning have considerably expanded the capacity to analyze protein structures, infer physicochemical properties, and model intermolecular interactions. Nevertheless, the vastness of chemical space and the intricate nature of protein-ligand interactions pose significant challenges in the early stages of drug discovery.This dissertation first addresses these challenges through the development and application of a comprehensive pipeline for fragment-based drug discovery (FBDD). A key contribution is the implementation of an automated data curation pipeline, including fetching, cleaning, and ligand decomposition tailored for ChemPLAN-Net, a deep learning framework designed to predict protein-fragment interactions using physicochemical features. This pipeline enables efficient training dataset generation and supports the systematic training ChemPLAN-Net across multiple protein families. Based on fragment predictions, virtual synthesis, screening and fragment linking are explored to develop fragment hits into candidate full ligands.One critical challenge identified during this process is the accurate prediction of fragment poses and orientations within binding pockets, which significantly impacts down stream fragment elaboration. ChemPLAN-Net, despite its efficacy in fragment identification, lacks the ability to resolve fragment posing and fragment optimization (growing, linking, and merging). To address this limitation, we introduce FeatureDock, a Transformer based deep learning model that reframes the docking problem as a spatial probability density prediction task within a more coarsely grained space, by discretizing the protein surface and learning from physicochemical features of grid points. FeatureDock introduces an interpretable probability envelope over potential binding regions, based on which compound scoring and posing estimation is possible.By integrating deep learning methodologies with protein structures and physicochemical features, this work contributes to the advancement of data-driven, interpretable, and cost-efficient drug discovery frameworks. The approaches developed herein aim to improve hit identification, reduce design-cycle latency, and ultimately increase the success rate of early-stage drug discovery pipelines.
일반주제명  
Chemistry
일반주제명  
Pharmaceutical sciences
일반주제명  
Biochemistry
키워드  
Deep learning
키워드  
Drug discovery
키워드  
Fragment-based drug discovery
키워드  
Protein-ligand interactions
키워드  
Virtual screening
기타저자  
The University of Wisconsin - Madison Chemistry
기본자료저록  
Dissertations Abstracts International. 86-12B.
전자적 위치 및 접속  
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MARC

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■006m          o    d                
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■020    ▼a9798280771284
■035    ▼a(MiAaPQ)AAI32116218
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a540
■1001  ▼aXue,  Mingyi.
■24510▼aFeature-Based  Deep  Learning  Approaches  to  Facilitate  Drug  Discovery
■260    ▼a[Sl]▼bThe  University  of  Wisconsin  -  Madison▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a166  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-12,  Section:  B.
■500    ▼aAdvisor:  Huang,  Xuhui.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Wisconsin  -  Madison,  2025.
■520    ▼aProteins,  owing  to  their  structural  complexity  and  functional  diversity,  play  a  pivotal  role  in  drug  development.  Recent  advances  in  deep  learning  have  considerably  expanded  the  capacity  to  analyze  protein  structures,  infer  physicochemical  properties,  and  model  intermolecular  interactions.  Nevertheless,  the  vastness  of  chemical  space  and  the  intricate  nature  of  protein-ligand  interactions  pose  significant  challenges  in  the  early  stages  of  drug  discovery.This  dissertation  first  addresses  these  challenges  through  the  development  and  application  of  a  comprehensive  pipeline  for  fragment-based  drug  discovery  (FBDD).  A  key  contribution  is  the  implementation  of  an  automated  data  curation  pipeline,  including  fetching,  cleaning,  and  ligand  decomposition  tailored  for  ChemPLAN-Net,  a  deep  learning  framework  designed  to  predict  protein-fragment  interactions  using  physicochemical  features.  This  pipeline  enables  efficient  training  dataset  generation  and  supports  the  systematic  training  ChemPLAN-Net  across  multiple  protein  families.  Based  on  fragment  predictions,  virtual  synthesis,  screening  and  fragment  linking  are  explored  to  develop  fragment  hits  into  candidate  full  ligands.One  critical  challenge  identified  during  this  process  is  the  accurate  prediction  of  fragment  poses  and  orientations  within  binding  pockets,  which  significantly  impacts  down  stream  fragment  elaboration.  ChemPLAN-Net,  despite  its  efficacy  in  fragment  identification,  lacks  the  ability  to  resolve  fragment  posing  and  fragment  optimization  (growing,  linking,  and  merging).  To  address  this  limitation,  we  introduce  FeatureDock,  a  Transformer  based  deep  learning  model  that  reframes  the  docking  problem  as  a  spatial  probability  density  prediction  task  within  a  more  coarsely  grained  space,  by  discretizing  the  protein  surface  and  learning  from  physicochemical  features  of  grid  points.  FeatureDock  introduces  an  interpretable  probability  envelope  over  potential  binding  regions,  based  on  which  compound  scoring  and  posing  estimation  is  possible.By  integrating  deep  learning  methodologies  with  protein  structures  and  physicochemical  features,  this  work  contributes  to  the  advancement  of  data-driven,  interpretable,  and  cost-efficient  drug  discovery  frameworks.  The  approaches  developed  herein  aim  to  improve  hit  identification,  reduce  design-cycle  latency,  and  ultimately  increase  the  success  rate  of  early-stage  drug  discovery  pipelines.
■590    ▼aSchool  code:  0262.
■650  4▼aChemistry
■650  4▼aPharmaceutical  sciences
■650  4▼aBiochemistry
■653    ▼aDeep  learning
■653    ▼aDrug  discovery
■653    ▼aFragment-based  drug  discovery
■653    ▼aProtein-ligand  interactions
■653    ▼aVirtual  screening
■690    ▼a0485
■690    ▼a0487
■690    ▼a0800
■690    ▼a0572
■71020▼aThe  University  of  Wisconsin  -  Madison▼bChemistry.
■7730  ▼tDissertations  Abstracts  International▼g86-12B.
■790    ▼a0262
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358430▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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