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Proceedings of the National Academy of Sciences of the United States of America, volume 105, issue 1, pages 28-32

Selective photoinactivation of protein function through environment-sensitive switching of singlet oxygen generation by photosensitizer

Yogo Takatoshi 1, 2
Urano Yasuteru 1, 3
MIZUSHIMA Akiko 4
Sunahara Hisato 1, 2
Inoue Takanari 1
Hirose Kenzo 5
IINO Masamitsu 4
Kikuchi Kazuya 6
Nagano Tetsuo 1, 2
1
 
*Graduate School of Pharmaceutical Sciences and
2
 
Core Research for Evolutional Science and Technology (CREST) and
3
 
Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan;
4
 
Department of Pharmacology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;
5
 
Department of Cell Physiology, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa, Nagoya, Aichi 466-8550, Japan; and
6
 
Graduate School of Engineering, Division of Advanced Science and Biotechnology, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
Publication typeJournal Article
Publication date2008-01-08
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor11.1
ISSN00278424, 10916490
Multidisciplinary
Abstract
Chromophore-assisted light inactivation is a promising technique to inactivate selected proteins with high spatial and temporal resolution in living cells, but its use has been limited because of the lack of a methodology to prevent nonspecific photodamage in the cell owing to reactive oxygen species generated by the photosensitizer. Here we present a design strategy for photosensitizers with an environment-sensitive off/on switch for singlet oxygen (1O2) generation, which is switched on by binding to the target, to improve the specificity of protein photoinactivation. 1O2 generation in the unbound state is quenched by photoinduced electron transfer, whereas 1O2 generation can occur in the hydrophobic environment provided by the target protein, after specific binding. Inositol 1,4,5-trisphosphate receptor, which has been suggested to have a hydrophobic pocket around the ligand binding site, was specifically inactivated by an environment-sensitive photosensitizer-conjugated inositol 1,4,5-trisphosphate receptor ligand without 1O2 generation in the cytosol of the target cells, despite light illumination, demonstrating the potential of environment-sensitive photosensitizers to allow high-resolution control of generation of reactive oxygen species in the cell.

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Yogo T. et al. Selective photoinactivation of protein function through environment-sensitive switching of singlet oxygen generation by photosensitizer // Proceedings of the National Academy of Sciences of the United States of America. 2008. Vol. 105. No. 1. pp. 28-32.
GOST all authors (up to 50) Copy
Yogo T., Urano Y., MIZUSHIMA A., Sunahara H., Inoue T., Hirose K., IINO M., Kikuchi K., Nagano T. Selective photoinactivation of protein function through environment-sensitive switching of singlet oxygen generation by photosensitizer // Proceedings of the National Academy of Sciences of the United States of America. 2008. Vol. 105. No. 1. pp. 28-32.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1073/pnas.0611717105
UR - https://doi.org/10.1073%2Fpnas.0611717105
TI - Selective photoinactivation of protein function through environment-sensitive switching of singlet oxygen generation by photosensitizer
T2 - Proceedings of the National Academy of Sciences of the United States of America
AU - Yogo, Takatoshi
AU - Urano, Yasuteru
AU - MIZUSHIMA, Akiko
AU - Sunahara, Hisato
AU - Inoue, Takanari
AU - Hirose, Kenzo
AU - IINO, Masamitsu
AU - Kikuchi, Kazuya
AU - Nagano, Tetsuo
PY - 2008
DA - 2008/01/08 00:00:00
PB - Proceedings of the National Academy of Sciences (PNAS)
SP - 28-32
IS - 1
VL - 105
PMID - 18172220
SN - 0027-8424
SN - 1091-6490
ER -
BibTex |
Cite this
BibTex Copy
@article{2008_Yogo,
author = {Takatoshi Yogo and Yasuteru Urano and Akiko MIZUSHIMA and Hisato Sunahara and Takanari Inoue and Kenzo Hirose and Masamitsu IINO and Kazuya Kikuchi and Tetsuo Nagano},
title = {Selective photoinactivation of protein function through environment-sensitive switching of singlet oxygen generation by photosensitizer},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
year = {2008},
volume = {105},
publisher = {Proceedings of the National Academy of Sciences (PNAS)},
month = {jan},
url = {https://doi.org/10.1073%2Fpnas.0611717105},
number = {1},
pages = {28--32},
doi = {10.1073/pnas.0611717105}
}
MLA
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MLA Copy
Yogo, Takatoshi, et al. “Selective photoinactivation of protein function through environment-sensitive switching of singlet oxygen generation by photosensitizer.” Proceedings of the National Academy of Sciences of the United States of America, vol. 105, no. 1, Jan. 2008, pp. 28-32. https://doi.org/10.1073%2Fpnas.0611717105.
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