Evidence map›Paper›PMID 29073067›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Self-association of a highly charged arginine-rich cell-penetrating peptide.

Giulio Tesei, Mario Vazdar, Malene Ringkjøbing Jensen, Carolina Cragnell, Phil E Mason, Jan Heyda, Marie Skepö, Pavel Jungwirth, Mikael Lund

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing 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

40 citing papers in PubMed.

  1. Article
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  4. Review
  5. Article
  6. Prediction of phase-separation propensities of disordered proteins from sequence.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Review
  9. Making Proteins with Electricity.Reviews of physiology, biochemistry and pharmacology · 2025
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Peptides as carriers of active ingredients: A review.Current research in food science · 2023
    Review
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

9 authors.

Giulio TeseiDepartment of Chemistry, Division of Theoretical Chemistry, Lund University, SE-22100 Lund, Sweden; Mikael.Lund@teokem.lu.se giulio.tesei@teokem.lu.se pavel.jungwirth@uochb.cas.cz.
Mario VazdarDivision of Organic Chemistry and Biochemistry, Rudjer Bos̆ković Institute, HR-10002 Zagreb, Croatia.
Malene Ringkjøbing JensenUniv. Grenoble Alpes, CNRS, CEA, IBS, 38000 Grenoble, France.
Carolina CragnellDepartment of Chemistry, Division of Theoretical Chemistry, Lund University, SE-22100 Lund, Sweden.ORCID 0000-0001-6751-0644
Phil E MasonInstitute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic.
Jan HeydaDepartment of Physical Chemistry, Faculty of Chemical Engineering, University of Chemistry and Technology, Prague, 16628 Prague 6, Czech Republic.
Marie SkepöDepartment of Chemistry, Division of Theoretical Chemistry, Lund University, SE-22100 Lund, Sweden.
Pavel JungwirthInstitute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 16610 Prague 6, Czech Republic; Mikael.Lund@teokem.lu.se giulio.tesei@teokem.lu.se pavel.jungwirth@uochb.cas.cz.
Mikael LundDepartment of Chemistry, Division of Theoretical Chemistry, Lund University, SE-22100 Lund, Sweden; Mikael.Lund@teokem.lu.se giulio.tesei@teokem.lu.se pavel.jungwirth@uochb.cas.cz.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Small-angle X-ray scattering (SAXS) measurements reveal a striking difference in intermolecular interactions between two short highly charged peptides-deca-arginine (R10) and deca-lysine (K10). Comparison of SAXS curves at high and low salt concentration shows that R10 self-associates, while interactions between K10 chains are purely repulsive. The self-association of R10 is stronger at lower ionic strengths, indicating that the attraction between R10 molecules has an important electrostatic component. SAXS data are complemented by NMR measurements and potentials of mean force between the peptides, calculated by means of umbrella-sampling molecular dynamics (MD) simulations. All-atom MD simulations elucidate the origin of the R10-R10 attraction by providing structural information on the dimeric state. The last two C-terminal residues of R10 constitute an adhesive patch formed by stacking of the side chains of two arginine residues and by salt bridges formed between the like-charge ion pair and the C-terminal carboxyl groups. A statistical analysis of the Protein Data Bank reveals that this mode of interaction is a common feature in proteins.

Indexed as

Amino Acid SequenceArginineComputer SimulationMagnetic Resonance SpectroscopyModels, ChemicalOsmolar ConcentrationPeptidesProtein BindingScattering, Small AngleStatic ElectricityX-Ray DiffractionArgininePeptidescell-penetrating peptideMD simulationsNMRSAXSself-association

Identifiers

PMID29073067
PMCPMC5664544

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.