Preview |
PDF (Original Article)
- Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB |
Other (Supporting Information)
22MB |
Item Type: | Article |
---|---|
Title: | Unscrambling fluorophore blinking for comprehensive cluster detection via photoactivated localization microscopy |
Creators Name: | Platzer, R., Rossboth, B.K., Schneider, M.C., Sevcsik, E., Baumgart, F., Stockinger, H., Schütz, G.J., Huppa, J.B. and Brameshuber, M. |
Abstract: | Determining nanoscale protein distribution via Photoactivated Localization Microscopy (PALM) mandates precise knowledge of the applied fluorophore's blinking properties to counteract overcounting artifacts that distort the resulting biomolecular distributions. Here, we present a readily applicable methodology to determine, optimize and quantitatively account for the blinking behavior of any PALM-compatible fluorophore. Using a custom-designed platform, we reveal complex blinking of two photoswitchable fluorescence proteins (PS-CFP2 and mEOS3.2) and two photoactivatable organic fluorophores (PA Janelia Fluor 549 and Abberior CAGE 635) with blinking cycles on time scales of several seconds. Incorporating such detailed information in our simulation-based analysis package allows for robust evaluation of molecular clustering based on individually recorded single molecule localization maps. |
Keywords: | Fluorescence Imaging, Molecular Biophysics, Nanoscale Biophysics, Single-Molecule Biophysics |
Source: | Nature Communications |
ISSN: | 2041-1723 |
Publisher: | Nature Publishing Group |
Volume: | 11 |
Number: | 1 |
Page Range: | 4993 |
Date: | 5 October 2020 |
Official Publication: | https://doi.org/10.1038/s41467-020-18726-9 |
PubMed: | View item in PubMed |
Repository Staff Only: item control page