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Photocontrollable fluorescent proteins for superresolution imaging.

Daria M Shcherbakova1, Prabuddha Sengupta, Jennifer Lippincott-Schwartz

  • 1Department of Anatomy and Structural Biology, and.

Annual Review of Biophysics
|June 5, 2014
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Summary
This summary is machine-generated.

Photocontrollable fluorescent proteins enable advanced superresolution microscopy for visualizing cellular structures. This review details their properties and applications in live cell imaging and disease research.

Keywords:
EosFPPAGFPPALMPAmCherryRESOLFT

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Area of Science:

  • Biophysics
  • Cell Biology
  • Microscopy

Background:

  • Traditional light microscopy is limited by diffraction, hindering visualization of fine subcellular structures.
  • Superresolution fluorescence microscopy overcomes these limits, enabling nanoscale biological imaging.
  • Genetically encoded photocontrollable fluorescent proteins are crucial tools for many superresolution techniques, especially live cell imaging.

Purpose of the Study:

  • To review the biochemical and photophysical properties of photocontrollable fluorescent proteins relevant to superresolution microscopy.
  • To describe newly developed photoactivatable, photoswitchable, and reversibly photoswitchable fluorescent proteins.
  • To detail the utility of these proteins in various superresolution techniques and their applications.

Main Methods:

  • Review of literature on photocontrollable fluorescent proteins.
  • Analysis of biochemical and photophysical properties.
  • Description of superresolution microscopy techniques (single-molecule localization, nonlinear ensemble).

Main Results:

  • Photocontrollable fluorescent proteins offer light-controlled fluorescence for superresolution imaging.
  • Specific protein types (photoactivatable, photoswitchable) are suited for different superresolution methods.
  • These proteins enhance visualization of intracellular structures and dynamic processes.

Conclusions:

  • Photocontrollable fluorescent proteins are essential for advancing superresolution microscopy.
  • Their application aids in understanding fundamental biological processes across various fields.
  • Future research will likely expand their use in biomedicine and developmental biology.