KillerOrange, a Genetically Encoded Photosensitizer Activated by Blue and Green Light

Genetically encoded photosensitizers, proteins that produce reactive oxygen species when illuminated with visible light, are increasingly used as optogenetic tools. Their applications range from ablation of specific cell populations to precise optical inactivation of cellular proteins. Here, we repo...

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Veröffentlicht in:PloS one 2015-12, Vol.10 (12), p.e0145287
Hauptverfasser: Sarkisyan, Karen S, Zlobovskaya, Olga A, Gorbachev, Dmitry A, Bozhanova, Nina G, Sharonov, George V, Staroverov, Dmitriy B, Egorov, Evgeny S, Ryabova, Anastasia V, Solntsev, Kyril M, Mishin, Alexander S, Lukyanov, Konstantin A
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container_issue 12
container_start_page e0145287
container_title PloS one
container_volume 10
creator Sarkisyan, Karen S
Zlobovskaya, Olga A
Gorbachev, Dmitry A
Bozhanova, Nina G
Sharonov, George V
Staroverov, Dmitriy B
Egorov, Evgeny S
Ryabova, Anastasia V
Solntsev, Kyril M
Mishin, Alexander S
Lukyanov, Konstantin A
description Genetically encoded photosensitizers, proteins that produce reactive oxygen species when illuminated with visible light, are increasingly used as optogenetic tools. Their applications range from ablation of specific cell populations to precise optical inactivation of cellular proteins. Here, we report an orange mutant of red fluorescent protein KillerRed that becomes toxic when illuminated with blue or green light. This new protein, KillerOrange, carries a tryptophan-based chromophore that is novel for photosensitizers. We show that KillerOrange can be used simultaneously and independently from KillerRed in both bacterial and mammalian cells offering chromatic orthogonality for light-activated toxicity.
doi_str_mv 10.1371/journal.pone.0145287
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subjects Ablation
Bacteria
Biochemistry
Biology
Cell division
Cells (Biology)
Cellular proteins
Chemistry
Chromophores
Coding
Deactivation
Endangered & extinct species
Fluorescence
Genetic code
Green Fluorescent Proteins - chemistry
Green Fluorescent Proteins - genetics
HEK293 Cells
Humans
Inactivation
Light
Luminescent Proteins - chemistry
Luminescent Proteins - genetics
Luminescent Proteins - radiation effects
Luminescent Proteins - toxicity
Mammalian cells
Mutagenesis
Mutation
Orthogonality
Oxygen
Photosensitizing Agents - chemistry
Photosensitizing Agents - radiation effects
Photosensitizing Agents - toxicity
Proteins
Reactive oxygen species
Red Fluorescent Protein
Toxicity
Tryptophan
Ultraviolet Rays
title KillerOrange, a Genetically Encoded Photosensitizer Activated by Blue and Green Light
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