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Application of activity-based protein profiling to study enzyme function in adipocytes.

Andrea Galmozzi1, Eduardo Dominguez1, Benjamin F Cravatt1

  • 1Department of Chemical Physiology, The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California, USA.

Methods in Enzymology
|February 18, 2014
PubMed
Summary

Activity-based protein profiling (ABPP) uses chemical probes to label active enzymes in cells. This method helps discover enzymes in fat cells and understand their role in adipose tissue disorders.

Keywords:
ABPP probesActivity-based protein profilingAdipocyte enzymesChemoproteomics methodsEnzyme activityFunctional proteomicsSerine hydrolases

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Area of Science:

  • Biochemistry
  • Chemical proteomics
  • Molecular biology

Background:

  • Activity-based protein profiling (ABPP) is a chemical proteomics method.
  • ABPP probes selectively label active enzymes, not inactive forms.
  • This facilitates characterization of enzyme activity changes independent of protein levels.

Purpose of the Study:

  • To demonstrate ABPP's utility in studying adipocyte enzymatic pathways.
  • To highlight ABPP as a superior tool for discovering active enzymes in adipocytes.
  • To detect enzyme activity differences linked to adipose tissue dysfunction.

Main Methods:

  • Utilizing small-molecule probes for activity-based protein profiling.
  • Selective labeling of active enzymes within native biological systems.
  • Applying ABPP analysis to the serine hydrolase enzyme family in adipocytes.

Main Results:

  • ABPP enables discovery of novel enzymes active in adipocytes.
  • It identifies alterations in enzyme activity associated with adipose tissue disorders.
  • Methods for applying ABPP to adipocyte enzymatic pathways are described.

Conclusions:

  • ABPP is a powerful tool for functional enzyme profiling in adipocytes.
  • It offers advantages over traditional methods for studying enzyme activity in metabolic research.
  • This approach aids in understanding adipocyte physiology and related diseases.