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research article

Photoactivatable and photoconvertible fluorescent probes for protein labeling

Maurel, Damien  
•
Banala, Sambashiva  
•
Laroche, Thierry  
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2010
ACS chemical biology

Photosensitive probes are powerful tools to study cellular processes with high temporal and spatial resolution. However, most synthetic fluorophores suited for biomolecular imaging have not been converted yet to appropriate photosensitive analogues. Here we describe a generally applicable strategy for the generation of photoactivatable and photoconvertible fluorescent probes that can be selectively coupled to SNAP-tag fusion proteins in living cells. Photoactivatable versions of fluorescein and Cy3 as well as a photoconvertible Cy5-Cy3 probe were prepared and coupled to selected proteins on the cell surface, in the cytosol, and in the nucleus of cells. In proof-of-principle experiments, the photoactivatable Cy3 probe was used to characterize the mobility of a lipid-anchored cell surface protein and of a G protein coupled receptor (GPCR). This work establishes a generally applicable strategy for the generation of a large variety of different photosensitive fluorophores with tailor-made properties for biomolecular imaging.

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Type
research article
DOI
10.1021/cb1000229
Web of Science ID

WOS:000277865500009

Author(s)
Maurel, Damien  
Banala, Sambashiva  
Laroche, Thierry  
Johnsson, Kai  
Date Issued

2010

Publisher

American Chemical Society

Published in
ACS chemical biology
Volume

5

Issue

5

Start page

507

End page

16

Subjects

Fluorescent Dyes

•

Photochemistry

•

Recombinant Fusion Proteins

Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LIP  
PTBIOP  
Available on Infoscience
October 15, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/55573
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