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Related Concept Videos

Role of Matrix Metalloproteases in Degradation of ECM01:23

Role of Matrix Metalloproteases in Degradation of ECM

Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult body.
A...

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Updated: Jun 16, 2026

Detection of Protease Activity by Fluorescent Peptide Zymography
09:56

Detection of Protease Activity by Fluorescent Peptide Zymography

Published on: January 20, 2019

Using fluorogenic peptide substrates to assay matrix metalloproteinases.

Gregg B Fields1

  • 1Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, FL, USA.

Methods in Molecular Biology (Clifton, N.J.)
|February 6, 2010
PubMed
Summary
This summary is machine-generated.

This study details continuous assay methods for evaluating proteases, focusing on matrix metalloproteinases (MMPs). It highlights the use of fluorescence resonance energy transfer (FRET) substrates for understanding MMP activity and designing inhibitors.

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Last Updated: Jun 16, 2026

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Non-invasive In Vivo Fluorescence Optical Imaging of Inflammatory MMP Activity Using an Activatable Fluorescent Imaging Agent
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Area of Science:

  • Biochemistry
  • Enzymology
  • Molecular Biology

Background:

  • Proteases, particularly matrix metalloproteinases (MMPs), play crucial roles in biological processes.
  • Understanding MMP kinetics and specificity is vital for developing targeted inhibitors.
  • Existing assay methods can be limiting for rapid kinetic evaluation.

Purpose of the Study:

  • To provide an overview of MMPs and related fluorescence resonance energy transfer (FRET) substrates.
  • To describe the construction and utilization of FRET substrates for studying MMP activity.
  • To aid in the design of novel MMP inhibitors through better understanding of MMP behaviors.

Main Methods:

  • Development of continuous assay methods utilizing fluorescence increase upon hydrolysis.
  • Application of quenched fluorescent substrates employing FRET/intramolecular fluorescence energy transfer (IFET).
  • Construction of FRET triple-helical substrates to assess collagenolytic activity.

Main Results:

  • Continuous assays enable rapid and convenient kinetic evaluation of proteases.
  • Sequence specificity, phage display, and combinatorial chemistry studies have elucidated MMP differences.
  • FRET-based substrates are effective tools for examining MMP activity, including collagenolytic functions.

Conclusions:

  • FRET substrates are valuable for characterizing MMPs and their enzymatic activities.
  • These substrates facilitate the design of specific MMP inhibitors.
  • The described methods offer a robust approach for protease kinetic studies.