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High Precision FRET at Single-molecule Level for Biomolecule Structure Determination
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JoVE Journal Bioquímica
High Precision FRET at Single-molecule Level for Biomolecule Structure Determination

High Precision FRET at Single-molecule Level for Biomolecule Structure Determination

DOI:
10.3791/55623-v

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11:24 min

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May 13, 2017

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, , , , ,
1Department of Chemistry,Clemson University, 2Department of Physics and Astronomy,Clemson University, 3Department of Biochemistry and Molecular Biology, Center for Membrane Biology, Graduate School for Biomedical Sciences,University of Texas Health Science Center

Capítulos

  • 00:05Título
  • 01:07Preparation of Materials
  • 02:57Pulsed Interleaved Excitation-Multiparameter Fluorescence Detection (PIE-MFD) Instrument Setup
  • 06:14Burst Integration Fluorescence Lifetime Analysis of Standards
  • 07:34dsDNA and Protein Sample Measurements and Analysis
  • 09:28Results: Inter-dye Distance Determination in Single Molecules
  • 10:54Conclusion

Summary

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Tadução automática

A protocol for high-precision FRET experiments at the single molecule level is presented here. Additionally, this methodology can be used to identify three conformational states in the ligand-binding domain of the N-methyl-D-aspartate (NMDA) receptor. Determining precise distances is the first step towards building structural models based on FRET experiments.

Tags

Keywords: High Precision FRETSingle-moleculeBiomolecule Structure DeterminationFörster Resonance Energy TransferMultiparameter Fluorescence DetectionInterdye Distance MeasurementNMDA ReceptorConformational StatesStructural ModelDynamic Biomolecules

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