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Related Concept Videos

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
Photoluminescence: Applications01:14

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

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A Step Beyond BRET: Fluorescence by Unbound Excitation from Luminescence (FUEL)
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Published on: May 23, 2014

Fluorescence and bioluminescence procedures for functional proteomics.

Anke Prinz1, Gregor Reither, Mandy Diskar

  • 1University of Kassel, Department of Biochemistry, Kassel, Germany. ankeprinz@uni-kassel.de

Proteomics
|February 20, 2008
PubMed
Summary
This summary is machine-generated.

This review covers optical methods for functional proteomics, including reporter assays and advanced techniques like biosensors and flow cytometry. These tools enhance the study of cellular processes and pave the way for systems biology.

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Area of Science:

  • Proteomics
  • Cellular Biology
  • Biotechnology

Background:

  • Functional proteomics investigates protein localization, interactions, and signaling in living cells.
  • Optical methods are crucial for visualizing and quantifying these cellular events.

Purpose of the Study:

  • To review current optical procedures in functional proteomics.
  • To highlight recent advancements in cellular imaging and analysis techniques.

Main Methods:

  • Reporter assays (fluorescent, bioluminescent) for protein localization and interactions.
  • Intracellular biosensor assays and flow cytometry (fluorescent cell barcoding).
  • Transfected cell microarray assays with RNA interference and automated imaging.

Main Results:

  • Novel techniques enable high-throughput screening for small molecule annotation and phenotype analysis.
  • Improved image acquisition and processing link in vitro findings to in vivo processes.
  • Quantitative data facilitate the modeling of signaling cascades and cellular events.

Conclusions:

  • Advanced optical methods are transforming functional proteomics research.
  • These techniques are essential for advancing systems biology and understanding complex cellular functions.