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Related Experiment Videos

Enzymes: An integrated view of structure, dynamics and function.

Pratul K Agarwal1

  • 1Computational Biology Institute, and Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA. agarwalpk@ornl.gov.

Microbial Cell Factories
|January 18, 2006
PubMed
Summary
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Enzymes are dynamic machines, not static. Protein vibrations and solvent fluctuations significantly impact enzyme catalysis, revealing protein dynamics

Area of Science:

  • Biochemistry
  • Structural Biology
  • Enzymology

Background:

  • Enzymes function as biocatalysts, traditionally viewed as static structures.
  • Recent evidence highlights proteins as dynamic machines with internal motions influencing function.
  • Solvent fluctuations impact protein dynamics and, consequently, enzyme activity.

Purpose of the Study:

  • To review recent biochemical and theoretical investigations on internal protein dynamics in enzyme catalysis.
  • To explore the role of protein vibrations and dynamics in enzyme rate enhancement.
  • To discuss implications for understanding enzyme mechanisms and protein engineering.

Main Methods:

  • Review of recent biochemical investigations.
  • Analysis of theoretical and computational studies.

Related Experiment Videos

  • Detailed characterization of enzyme dynamics.

    • Main Results:

    • Discovery of protein vibration networks that promote catalysis in cyclophilin A.
    • Evidence that internal protein motions are crucial for enzyme rate enhancement.
    • Similar dynamics-driven catalytic mechanisms observed in other enzymes like dihydrofolate reductase and liver alcohol dehydrogenase.

    Conclusions:

    • Protein dynamics play a critical role in enzyme catalysis and rate enhancement.
    • An integrated understanding of enzyme structure, dynamics, and function is essential.
    • Findings have broad implications for allostery, protein engineering, and drug design.