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Related Concept Videos

Drug Discovery: Overview01:26

Drug Discovery: Overview

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Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
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Structure-Activity Relationships and Drug Design01:28

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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
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Related Experiment Video

Updated: Sep 14, 2025

High-Density DNA and RNA microarrays - Photolithographic Synthesis, Hybridization and Preparation of Large Nucleic Acid Libraries
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Rational Design Strategies in DNA-Encoded Libraries for Drug Discovery.

Xudong Wang1,2, Linjie Li3, Xuanjing Shen1,2

  • 1State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, P.R. China.

Angewandte Chemie (International Ed. in English)
|July 25, 2025
PubMed
Summary
This summary is machine-generated.

DNA-encoded libraries (DELs) offer efficient screening but often yield limited diversity. Innovations like fragment-based and focused DELs improve hit quality and enable precision drug discovery.

Keywords:
Covalent librariesDNA‐encoded librariesDrug discoveryFocused librariesFragment‐based libraries

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Area of Science:

  • Medicinal Chemistry
  • Chemical Biology
  • Drug Discovery

Background:

  • DNA-encoded libraries (DELs) are a cost-effective high-throughput screening platform.
  • Traditional DELs face limitations including low hit rates and limited chemical diversity.

Purpose of the Study:

  • To review the evolution of DEL methodologies.
  • To highlight innovations enhancing DEL hit quality and screening efficiency.

Main Methods:

  • Systematic examination of DEL methodology evolution.
  • Focus on innovations in library design.

Main Results:

  • Emergence of fragment-based DELs for exploring chemical space.
  • Incorporation of covalent warheads for irreversible binding.
  • Development of focused DELs for specific protein targets.

Conclusions:

  • Advances shift DELs from empirical screening to a strategic, hypothesis-driven approach.
  • Innovations enhance precision and efficiency in small-molecule ligand identification.