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Enzymes speed up reactions by lowering the activation energy of the reactants. The speed at which the enzyme turns reactants into products is called the rate of reaction. Several factors impact the rate of reaction, including the number of available reactants. Enzyme kinetics is the study of how an enzyme changes the rate of a reaction.
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Related Experiment Video

Updated: Feb 4, 2026

Tandem Affinity Purification of Protein Complexes from Eukaryotic Cells
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The Affinity Advantage.

Mark A Murcko1

  • 1Disruptive Biomedical, LLC, Holliston, Massachusetts 01746, United States.

Journal of Medicinal Chemistry
|February 2, 2026
PubMed
Summary
This summary is machine-generated.

Optimizing drug-receptor binding affinity, not just maximizing it, accelerates drug discovery. Focusing on affinity offers seven key benefits, improving potency, selectivity, and speed in developing new medicines.

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Area of Science:

  • Medicinal Chemistry
  • Drug Discovery and Development
  • Pharmacology

Background:

  • Drug discovery is a multifaceted optimization challenge.
  • Current strategies may not fully leverage the potential of optimizing drug-receptor interactions.
  • Binding affinity is a critical, yet often underappreciated, parameter.

Purpose of the Study:

  • To advocate for increased emphasis on optimizing binding affinity in drug discovery.
  • To highlight the profound benefits of strategic affinity optimization.
  • To provide practical guidance for implementing affinity optimization.

Main Methods:

  • The study presents a conceptual argument supported by the enumeration of benefits.
  • It emphasizes a strategic approach to affinity optimization rather than simple maximization.
  • Practical suggestions are offered for project teams.

Main Results:

  • Optimizing binding affinity accelerates the discovery of potent tool compounds.
  • It enhances compound potency, selectivity, and speeds up drug candidate optimization.
  • This approach encourages exploration of diverse chemical structures and minimizes off-target effects impacting ADME/Tox.

Conclusions:

  • Binding affinity is a crucial strategic element throughout the drug discovery pipeline.
  • A focused approach to optimizing affinity yields significant advantages in efficiency and success rates.
  • Implementing practical affinity optimization strategies can lead to faster development of safer and more effective drugs.