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Metabolic regulation: a control analytic perspective

J H Hofmeyr1

  • 1Department of Biochemistry, University of Stellenbosch, South Africa.

Journal of Bioenergetics and Biomembranes
|October 1, 1995
PubMed
Summary
This summary is machine-generated.

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This study introduces a quantitative theory for metabolic regulation, defining it as altering enzyme properties to manage reaction trends. Elasticity coefficients are key to distinguishing and quantifying regulatory effects in biological systems.

Area of Science:

  • Biochemistry
  • Systems Biology
  • Metabolic Engineering

Background:

  • Metabolic regulation is crucial for cellular function.
  • Existing theories lack a quantitative framework for distinguishing regulatory effects from mass-action trends.

Purpose of the Study:

  • To outline a quantitative theory for metabolic regulation.
  • To define regulatory mechanisms in biological networks.
  • To establish elasticity coefficients as key metrics for quantifying regulation.

Main Methods:

  • Defining metabolic regulation as alteration of reaction properties.
  • Analyzing enzyme-catalyzed reactions using elasticity coefficients.
  • Decomposing elasticity coefficients into mass-action and regulatory kinetic terms.

Related Experiment Videos

  • Applying concepts to simple and complex reaction systems.

    • Main Results:

    • Elasticity coefficients quantify metabolic regulation by separating mass-action and regulatory kinetic contributions.
    • These coefficients link metabolic regulation to control, signaling, stability, and homeostasis.
    • Co-response coefficients can measure the elasticity of reaction blocks in complex systems.

    Conclusions:

    • A quantitative framework for metabolic regulation is established.
    • Elasticity coefficients are fundamental for understanding and measuring regulatory processes.
    • The theory provides a basis for analyzing metabolic control in diverse biological systems.