Evidence map›Paper›PMID 31558722›Full record

ArticleNature communications2019

Methionine in a protein hydrophobic core drives tight interactions required for assembly of spider silk.

Julia C Heiby, Benedikt Goretzki, Christopher M Johnson, Ute A Hellmich, Hannes Neuweiler

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

19 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Emergent properties of supramolecular peptide assemblies.Chemical communications (Cambridge, England) · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Domain swap facilitates structural transitions of spider silk protein C-terminal domains.Protein science : a publication of the Protein Society · 2023
    Article
  9. Article
  10. Unusual pBiomacromolecules · 2023
    Article
  11. Article
  12. Increasing the OACS catalysis · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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 at 3 institutions in 2 countries.

Julia C HeibyDepartment of Biotechnology and Biophysics, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany.ORCID http://orcid.org/0000-0001-8191-8945
Benedikt GoretzkiInstitute for Pharmacy and Biochemistry, Johannes-Gutenberg-University Mainz, Johann-Joachim Becherweg 30, 55128, Mainz, Germany.ORCID http://orcid.org/0000-0002-7721-6657
Christopher M JohnsonMedical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK.ORCID http://orcid.org/0000-0002-5900-3068
Ute A HellmichInstitute for Pharmacy and Biochemistry, Johannes-Gutenberg-University Mainz, Johann-Joachim Becherweg 30, 55128, Mainz, Germany. u.hellmich@uni-mainz.de.ORCID http://orcid.org/0000-0001-7162-285X
Hannes NeuweilerDepartment of Biotechnology and Biophysics, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany. hannes.neuweiler@uni-wuerzburg.de.ORCID http://orcid.org/0000-0002-6657-001X
Goethe University Frankfurt · DEUniversity of Würzburg · DEMRC Laboratory of Molecular Biology · GB

Funding

Medical Research Council MC_U105184326
6 · The paper itself

Abstract

Web spiders connect silk proteins, so-called spidroins, into fibers of extraordinary toughness. The spidroin N-terminal domain (NTD) plays a pivotal role in this process: it polymerizes spidroins through a complex mechanism of dimerization. Here we analyze sequences of spidroin NTDs and find an unusually high content of the amino acid methionine. We simultaneously mutate all methionines present in the hydrophobic core of a spidroin NTD from a nursery web spider's dragline silk to leucine. The mutated NTD is strongly stabilized and folds at the theoretical speed limit. The structure of the mutant is preserved, yet its ability to dimerize is substantially impaired. We find that side chains of core methionines serve to mobilize the fold, which can thereby access various conformations and adapt the association interface for tight binding. Methionine in a hydrophobic core equips a protein with the capacity to dynamically change shape and thus to optimize its function.

Indexed as

AlgorithmsAmino Acid SequenceAnimalsFibroinsHydrophobic and Hydrophilic InteractionsMethionineMutationProtein ConformationProtein FoldingProtein MultimerizationSequence Homology, Amino AcidSilkSpectrometry, FluorescenceSpidersThermodynamicsFibroinsMethionineSilk

Identifiers

PMID31558722
PMCPMC6763431
OpenAlexW2976665996

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.