Evidence map›Paper›PMID 29593344›Full record

ArticleScientific reports2018

Characterization of Split Fluorescent Protein Variants and Quantitative Analyses of Their Self-Assembly Process.

Tuğba Köker, Anthony Fernandez, Fabien Pinaud

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
5.7field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. DNA-Regulated Multi-Protein Complement Control.Journal of the American Chemical Society · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. CRISPR-Cas9-Mediated Knock-In Approach to Insert the GFPMethods in molecular biology (Clifton, N.J.) · 2023
    Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Tracking exogenous intracellular casp-3 using split GFP.Protein science : a publication of the Protein Society · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Tuğba KökerDepartment of Biological Sciences, University of Southern California, 1050 Child Way, Los Angeles, 90089, California, USA.
Anthony FernandezDepartment of Biological Sciences, University of Southern California, 1050 Child Way, Los Angeles, 90089, California, USA.
Fabien PinaudDepartment of Biological Sciences, University of Southern California, 1050 Child Way, Los Angeles, 90089, California, USA. pinaud@usc.edu.ORCID http://orcid.org/0000-0002-4272-3616
University of Southern California · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many biotechniques use complementary split-fluorescent protein (sFPs) fragments to visualize protein-protein interactions, image cells by ensemble or single molecule fluorescence microscopy, or assemble nanomaterials and protein superstructures. Yet, the reassembly mechanisms of sFPs, including fragment binding rates, folding, chromophore maturation and overall photophysics remain poorly characterized. Here, we evolved asymmetric and self-complementing green, yellow and cyan sFPs together with their full-length equivalents (flFPs) and described their biochemical and photophysical properties in vitro and in cells. While re-assembled sFPs have spectral properties similar to flFPs, they display slightly reduced quantum yields and fluorescence lifetimes due to a less sturdy β-barrel structure. The complementation of recombinant sFPs expressed in vitro follows a conformational selection mechanism whereby the larger sFP fragments exist in a monomer-dimer equilibrium and only monomers are competent for fluorescence complementation. This bimolecular fragment interaction involves a slow and irreversible binding step, followed by chromophore maturation at a rate similar to that of flFPs. When expressed as fusion tags in cells, sFPs behave as monomers directly activated with synthetic complementary fragments. This study resulted in the development of sFP color variants having improved maturation kinetics, brightness, and photophysics for fluorescence microscopy imaging of cellular processes, including single molecule detection.

Indexed as

Mutant ProteinsProtein MultimerizationFluorescenceGene ExpressionGreen Fluorescent ProteinsKineticsLuminescent ProteinsMicroscopy, FluorescenceProtein BindingProtein FoldingRecombinant ProteinsSpectrometry, FluorescenceCyan Fluorescent ProteinGreen Fluorescent ProteinsLuminescent ProteinsMutant ProteinsRecombinant Proteins

Identifiers

PMID29593344
PMCPMC5871787
OpenAlexW2804399884

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.