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Updated: Aug 5, 2026
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Fluorescence Anisotropy as a Tool to Study Protein-protein Interactions
Published on: October 21, 2016
Direct visualization of serine hydrolase activities in complex proteomes using fluorescent active site-directed
M P Patricelli1, D K Giang, L M Stamp
1ActivX Biosciences, La Jolla, CA 92037, USA. mattp@activx.com
Proteomics
|May 7, 2002
Summary
Researchers developed fluorescent activity-based probes (ABPs) for analyzing serine hydrolase enzymes. This new method offers higher throughput, sensitivity, and accuracy for proteome analysis compared to older techniques.
Area of Science:
- Biochemistry
- Proteomics
- Enzymology
Background:
- The human genome encodes over 30,000 proteins, presenting a significant challenge in assigning functional roles.
- Global analysis of proteins in complex biological systems is crucial for understanding cellular processes.
- Existing activity-based probes (ABPs) use radiochemical or biotin/avidin detection, limiting throughput and sensitivity.
Purpose of the Study:
- To synthesize and evaluate fluorescent activity-based probes (ABPs) for the serine hydrolase enzyme superfamily.
- To develop a method for simultaneous monitoring of multiple enzyme activities in proteomes.
- To improve upon existing ABP detection methods for enhanced proteome analysis.
Main Methods:
- Synthesis of novel fluorescent activity-based probes (ABPs).
- Application of these fluorescent ABPs to crude proteomes.
- Detection and visualization of serine hydrolase enzyme activities using fluorescence.
Main Results:
- Successful synthesis and evaluation of fluorescent ABPs for serine hydrolases.
- Demonstrated superior throughput, sensitivity, and quantitative accuracy compared to radiochemical or biotin/avidin ABPs.
- Established a straightforward platform for high-throughput proteome analysis.
Conclusions:
- Fluorescent ABPs provide a powerful tool for functional proteome analysis.
- This method significantly advances the ability to study enzyme activities in complex biological samples.
- The developed platform facilitates the assignment of functional significance to numerous uncharacterized proteins.
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