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@ARTICLE{Vogt:275851,
author = {Vogt, Arend and Paulat, Raik and Parthier, Daniel and Just,
Verena and Szczepek, Michal and Scheerer, Patrick and Xu,
Qianzhao and Möglich, Andreas and Schmitz, Dietmar and
Rost, Benjamin R and Wenger, Nikolaus},
title = {{S}imultaneous spectral illumination of microplates for
high-throughput optogenetics and photobiology.},
journal = {(0018-4888)},
volume = {405},
number = {11-12},
issn = {0018-4888},
reportid = {DZNE-2025-00086},
pages = {751 - 763},
year = {2024},
note = {ISSN: 1437-4315, Journal: Biological Chemistry},
abstract = {The biophysical characterization and engineering of
optogenetic tools and photobiological systems has been
hampered by the lack of efficient methods for spectral
illumination of microplates for high-throughput analysis of
action spectra. Current methods to determine action spectra
only allow the sequential spectral illumination of
individual wells. Here we present the open-source
RainbowCap-system, which combines LEDs and optical filters
in a standard 96-well microplate format for simultaneous and
spectrally defined illumination. The RainbowCap provides
equal photon flux for each wavelength, with the output of
the LEDs narrowed by optical bandpass filters. We validated
the RainbowCap for photoactivatable G protein-coupled
receptors (opto-GPCRs) and enzymes for the control of
intracellular downstream signaling. The simultaneous,
spectrally defined illumination provides minimal
interruption during time-series measurements, while
resolving 10 nm differences in the action spectra of
optogenetic proteins under identical experimental
conditions. The RainbowCap is also suitable for studying the
spectral dependence of light-regulated gene expression in
bacteria, which requires illumination over several hours. In
summary, the RainbowCap provides high-throughput spectral
illumination of microplates, while its modular, customizable
design allows easy adaptation to a wide range of optogenetic
and photobiological applications.},
keywords = {Optogenetics: methods / Optogenetics: instrumentation /
Photobiology / Receptors, G-Protein-Coupled: metabolism /
Receptors, G-Protein-Coupled: genetics / High-Throughput
Screening Assays / Light / Humans / GPCR (Other) / action
spectra (Other) / cyclic mononucleotides (Other) /
photoactivated nucleotidyl cyclases (Other) / rhodopsin
(Other) / signal transduction (Other) / Receptors,
G-Protein-Coupled (NLM Chemicals)},
cin = {AG Schmitz},
cid = {I:(DE-2719)1810004},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:39303162},
doi = {10.1515/hsz-2023-0205},
url = {https://pub.dzne.de/record/275851},
}