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Chapters
- 00:05Title
- 02:20Plasmid Constructs
- 03:07Protein Expression and Purification
- 06:16FRET-based Protease Assay for Enzyme Kinetic Study
- 08:54Quantitative FRET Spectrum Analysis
- 13:36Representative Results
- 15:11Conclusion
A novel method involving quantitative analysis of FRET (Förster Resonance Energy Transfer) signals is described for studying enzyme kinetics. KM and kcat were obtained for the hydrolysis of the catalytic domain of SENP1 (SUMO/Sentrin specific protease 1) to pre-SUMO1 (Small Ubiquitin-like MOdifier). The general principles of this quantitative-FRET-based protease kinetic study can be applied to other proteases.
Tags
Quantitative FRET AnalysisF&246;rster Resonance Energy TransferSENP1 Protease Kinetics DeterminationPosttranslational ModificationsUbiquitinUbiquitin-like ProteinsProtein Activity RegulationSUMO ModificationCellular ProcessesSUMO-specific ProteaseEndopeptidaseIsopeptidaseCatalytic EfficiencySpecificityKinetic ConstantsKcat/KM RatioMethods For Determining Kinetic ParametersPolyacrylamide Gel-based Western-blotRadioactive-labeled SubstrateFluorescent CompoundProtein Labeled Substrate
