Evidence map›Paper›PMID 24146945›Full record

ArticlePloS one2013

Combinatorial optimization of cystine-knot peptides towards high-affinity inhibitors of human matriptase-1.

Bernhard Glotzbach, Michael Reinwarth, Niklas Weber, Sebastian Fabritz, Michael Tomaszowski, Heiko Fittler, Andreas Christmann, Olga Avrutina, Harald Kolmar

Abstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Lipidation of a bioactive cyclotide-based CXCR4 antagonist greatly improves its pharmacokinetic profile in vivo.Journal of controlled release : official journal of the Controlled Release Society · 2023
    Article
  6. Review
  7. Cystine Knot Peptides with Tuneable Activity and Mechanism.Angewandte Chemie (International ed. in English) · 2022
    Article
  8. Article
  9. Engineered Cyclotides with Potent Broad in Vitro and in Vivo Antimicrobial Activity.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  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

9 authors.

Bernhard GlotzbachClemens-Schöpf-Institut für Organische Chemie und Biochemie, Technische Universität Darmstadt, Darmstadt, Germany.
Michael Reinwarth
Niklas Weber
Sebastian Fabritz
Michael Tomaszowski
Heiko Fittler
Andreas Christmann
Olga Avrutina
Harald Kolmar

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cystine-knot miniproteins define a class of bioactive molecules with several thousand natural members. Their eponymous motif comprises a rigid structured core formed by six disulfide-connected cysteine residues, which accounts for its exceptional stability towards thermic or proteolytic degradation. Since they display a remarkable sequence tolerance within their disulfide-connected loops, these molecules are considered promising frameworks for peptide-based pharmaceuticals. Natural open-chain cystine-knot trypsin inhibitors of the MCoTI (Momordica cochinchinensis trypsin inhibitor) and SOTI (Spinacia oleracea trypsin inhibitor) families served as starting points for the generation of inhibitors of matriptase-1, a type II transmembrane serine protease with possible clinical relevance in cancer and arthritic therapy. Yeast surface-displayed libraries of miniproteins were used to select unique and potent matriptase-1 inhibitors. To this end, a knowledge-based library design was applied that makes use of detailed information on binding and folding behavior of cystine-knot peptides. Five inhibitor variants, four of the MCoTI family and one of the SOTI family, were identified, chemically synthesized and oxidatively folded towards the bioactive conformation. Enzyme assays revealed inhibition constants in the low nanomolar range for all candidates. One subnanomolar binder (Ki = 0.83 nM) with an inverted selectivity towards trypsin and matriptase-1 was identified.

Indexed as

Cell LineCystine-Knot MiniproteinsEnzyme ActivationEnzyme InhibitorsHumansModels, MolecularPeptide LibraryProtein BindingProtein ConformationSerine EndopeptidasesTrypsin InhibitorsTwo-Hybrid System TechniquesUrokinase-Type Plasminogen ActivatorCystine-Knot MiniproteinsEnzyme InhibitorsmatriptasePeptide LibrarySerine EndopeptidasesTrypsin InhibitorsUrokinase-Type Plasminogen Activator

Identifiers

PMID24146945
PMCPMC3795654

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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.