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Related Concept Videos

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cAMP-dependent Protein Kinase Pathways

Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
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Related Experiment Video

Updated: Jul 8, 2026

Spectrophotometric Methods for the Study of Eukaryotic Glycogen Metabolism
07:59

Spectrophotometric Methods for the Study of Eukaryotic Glycogen Metabolism

Published on: August 19, 2021

Exploiting glycogen synthase kinase 3beta flexibility in molecular recognition.

Michael P Mazanetz1, Ian M Withers, Charles A Laughton

  • 1Centre for Biomolecular Sciences and School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, U.K.

Biochemical Society Transactions
|January 23, 2008
PubMed
Summary

Glycogen synthase kinase 3beta (GSK3beta) plays a role in various diseases. Understanding its dynamic nature and protein plasticity is key for developing new drugs, as shown by the active-site pressurization (ASP) method.

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Spectrophotometric Methods for the Study of Eukaryotic Glycogen Metabolism
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Modeling an Enzyme Active Site using Molecular Visualization Freeware
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Published on: December 25, 2021

Area of Science:

  • Biochemistry
  • Pharmacology
  • Structural Biology

Background:

  • Glycogen synthase kinase 3beta (GSK3beta) regulates critical cellular pathways through protein phosphorylation.
  • Dysregulation of GSK3beta is implicated in diseases like diabetes and Alzheimer's.
  • Targeting GSK3beta offers therapeutic potential, necessitating a deep understanding of its active site.

Purpose of the Study:

  • To investigate the dynamic characteristics of GSK3beta.
  • To emphasize the significance of protein plasticity in structure-based drug design.
  • To introduce and exemplify the active-site pressurization (ASP) method.

Main Methods:

  • Computational analysis of GSK3beta dynamics.
  • Application of the active-site pressurization (ASP) method.
  • Structure-based analysis of enzyme-inhibitor interactions.

Main Results:

  • GSK3beta exhibits significant protein plasticity.
  • The ASP method effectively probes active site dynamics.
  • Understanding these dynamics is crucial for rational drug design.

Conclusions:

  • Protein plasticity is a critical factor in GSK3beta inhibitor recognition.
  • The ASP method provides valuable insights for structure-based drug design strategies.
  • Targeting GSK3beta's dynamic nature can lead to novel therapeutic interventions.