Evidence map›Paper›PMID 24967681›Full record

ArticlePloS one2014

Nanoscale protein diffusion by STED-based pair correlation analysis.

Paolo Bianchini, Francesco Cardarelli, Mariagrazia Di Luca, Alberto Diaspro, Ranieri Bizzarri

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Review
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  5. An EfficientInternational journal of molecular sciences · 2022
    Article
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  18. Time-resolved biophysical approaches to nucleocytoplasmic transport.Computational and structural biotechnology journal · 2017
    Review
  19. Article
  20. Article
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.

Paolo BianchiniNanophysics, IIT-Italian Institute of Technology, Genoa, Italy.
Francesco CardarelliCenter for Nanotechnology Innovation @NEST, Istituto Italiano di Tecnologia, Pisa, Italy.
Mariagrazia Di LucaNEST, Scuola Normale Superiore and Istituto Nanoscienze - CNR, Pisa, Italy.
Alberto DiasproNanophysics, IIT-Italian Institute of Technology, Genoa, Italy.
Ranieri BizzarriNanophysics, IIT-Italian Institute of Technology, Genoa, Italy; NEST, Scuola Normale Superiore and Istituto Nanoscienze - CNR, Pisa, Italy; Istituto di Biofisica - CNR, Pisa, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We describe for the first time the combination between cross-pair correlation function analysis (pair correlation analysis or pCF) and stimulated emission depletion (STED) to obtain diffusion maps at spatial resolution below the optical diffraction limit (super-resolution). Our approach was tested in systems characterized by high and low signal to noise ratio, i.e. Capsid Like Particles (CLPs) bearing several (>100) active fluorescent proteins and monomeric fluorescent proteins transiently expressed in living Chinese Hamster Ovary cells, respectively. The latter system represents the usual condition encountered in living cell studies on fluorescent protein chimeras. Spatial resolution of STED-pCF was found to be about 110 nm, with a more than twofold improvement over conventional confocal acquisition. We successfully applied our method to highlight how the proximity to nuclear envelope affects the mobility features of proteins actively imported into the nucleus in living cells. Remarkably, STED-pCF unveiled the existence of local barriers to diffusion as well as the presence of a slow component at distances up to 500-700 nm from either sides of nuclear envelope. The mobility of this component is similar to that previously described for transport complexes. Remarkably, all these features were invisible in conventional confocal mode.

Indexed as

AnimalsCHO CellsCricetinaeCricetulusDiffusionGreen Fluorescent ProteinsMicroscopy, FluorescenceProtein TransportSensitivity and SpecificityViral Core ProteinsGreen Fluorescent ProteinsViral Core Proteins

Identifiers

PMID24967681
PMCPMC4072630

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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.