Evidence map›Paper›PMID 34494547›Full record

ArticleeLife2021

Multicolor fluorescence fluctuation spectroscopy in living cells via spectral detection.

Valentin Dunsing, Annett Petrich, Salvatore Chiantia

Open access · goldAbstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
5.0field-weighted citation impact, top 5% of its field
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

15 citing papers in PubMed, 30 citations in OpenAlex.

  1. Review
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  4. Intensity-Based Estimation of Monomeric Brightness for Fluorescent Proteins.International journal of molecular sciences · 2025
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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

3 authors at 1 institution in 1 country.

Valentin DunsingUniversität Potsdam, Institute of Biochemistry and Biology, Potsdam, Germany.ORCID 0000-0003-2482-1498
Annett PetrichUniversität Potsdam, Institute of Biochemistry and Biology, Potsdam, Germany.ORCID 0000-0002-2372-826X
Salvatore ChiantiaUniversität Potsdam, Institute of Biochemistry and Biology, Potsdam, Germany.ORCID 0000-0003-0791-967X
University of Potsdam · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Signaling pathways in biological systems rely on specific interactions between multiple biomolecules. Fluorescence fluctuation spectroscopy provides a powerful toolbox to quantify such interactions directly in living cells. Cross-correlation analysis of spectrally separated fluctuations provides information about intermolecular interactions but is usually limited to two fluorophore species. Here, we present scanning fluorescence spectral correlation spectroscopy (SFSCS), a versatile approach that can be implemented on commercial confocal microscopes, allowing the investigation of interactions between multiple protein species at the plasma membrane. We demonstrate that SFSCS enables cross-talk-free cross-correlation, diffusion, and oligomerization analysis of up to four protein species labeled with strongly overlapping fluorophores. As an example, we investigate the interactions of influenza A virus (IAV) matrix protein 2 with two cellular host factors simultaneously. We furthermore apply raster spectral image correlation spectroscopy for the simultaneous analysis of up to four species and determine the stoichiometry of ternary IAV polymerase complexes in the cell nucleus.

Indexed as

A549 CellsFluorescent DyesHEK293 CellsHumansMicroscopy, ConfocalSpectrometry, FluorescenceViral Matrix ProteinsViroporin ProteinsFluorescent DyesM2 protein, Influenza A virusViral Matrix ProteinsViroporin Proteinsdiffusionfluorescencemolecular biophysicsoptical microscopyphysics of living systemsprotein-protein interactionsstructural biologyvirus assemblyviruses

Identifiers

PMID34494547
PMCPMC8545396
OpenAlexW3197410698

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.