Evidence map›Paper›PMID 34085171›Full record

ArticlePhotochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology2021

Chromophore reduction plus reversible photobleaching: how the mKate2 "photoconversion" works.

Elena A Protasova, Alexander S Mishin, Konstantin A Lukyanov, Eugene G Maksimov, Alexey M Bogdanov

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Article in Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Elena A ProtasovaFaculty of Biology, Lomonosov Moscow State University, 119992, Moscow, Russia.
Alexander S MishinShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997, Moscow, Russia.
Konstantin A LukyanovShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997, Moscow, Russia.
Eugene G MaksimovFaculty of Biology, Lomonosov Moscow State University, 119992, Moscow, Russia.
Alexey M BogdanovShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997, Moscow, Russia. noobissat@ya.ru.ORCID http://orcid.org/0000-0002-5346-789X

Funding

Russian Science Foundation (RSCF) 20-14-00255
6 · The paper itself

Abstract

mKate red-to-green photoconversion is a non-canonical type of phototransformation in fluorescent proteins, with a poorly understood mechanism. We have hypothesized that the daughter mKate2 protein may also be photoconvertible, and that this phenomenon would be connected with mKate(2) chromophore photoreduction. Indeed, upon the intense irradiation of the protein sample supplemented by sodium dithionite, the accumulation of green as well as blue spectral forms is enhanced. The reaction was shown to be reversible upon the reductant's removal. However, an analysis of the fluorescence microscopy data, absorption spectra, kinetics and time-resolved fluorescence spectroscopy revealed that the short-wavelength spectral forms of mKate(2) exist before photoactivation, that their fractions increase light-independently after dithionite addition, and that the conversion is facilitated by the photobleaching of the red chromophore form.

Indexed as

Luminescent ProteinsMicroscopy, FluorescenceOxidation-ReductionPhotobleachingRed Fluorescent ProteinLuminescent ProteinsRed Fluorescent ProteinChromophoreDithioniteFluorescent proteinFRETPhotobleachingPhotoconversion

Identifiers

PMID34085171

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.