Evidence map›Paper›PMID 28559345›Full record

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

Peripheral modifications of [Ψ[CH

Akinori Okano, Nicholas A Isley, Dale L Boger

Open access · bronzeAbstract 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 92 papers.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed
16.3field-weighted citation impact, top 1% 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

92 citing papers in PubMed, 198 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Supernatural Products.The Chemist · 2025
    Article
  5. Article
  6. Review
  7. Strategic re-engineering of antibiotics.Nature reviews bioengineering · 2025
    Article
  8. Vancomycin-Teixobactin Conjugates.Journal of the American Chemical Society · 2025
    Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. The allure of targets for novel drugs.RSC medicinal chemistry · 2024
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

32 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Akinori OkanoDepartment of Chemistry, The Scripps Research Institute, La Jolla, CA 92037.
Nicholas A IsleyDepartment of Chemistry, The Scripps Research Institute, La Jolla, CA 92037.
Dale L BogerDepartment of Chemistry, The Scripps Research Institute, La Jolla, CA 92037; Boger@scripps.edu.
Scripps Research Institute · US

Funding

LUZOPEPTINS, VANCOMYCIN AND RELATED AGENTSR01CA041101 · NCI · SCRIPPS RESEARCH INSTITUTE, THE · PI BOGER, DALE L · 1985 to 2024
$9.5M
Access to a Saxitoxin-like Library for Binding Studies of Na Voltage ChannelsF32GM114948 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI ISLEY, NICHOLAS A. · 2016 to 2018
$168k
NCI NIH HHS R01 CA041101NIGMS NIH HHS F32 GM114948
6 · The paper itself

Abstract

Subsequent to binding pocket modifications designed to provide dual d-Ala-d-Ala/d-Ala-d-Lac binding that directly overcome the molecular basis of vancomycin resistance, peripheral structural changes have been explored to improve antimicrobial potency and provide additional synergistic mechanisms of action. A C-terminal peripheral modification, introducing a quaternary ammonium salt, is reported and was found to provide a binding pocket-modified vancomycin analog with a second mechanism of action that is independent of d-Ala-d-Ala/d-Ala-d-Lac binding. This modification, which induces cell wall permeability and is complementary to the glycopeptide inhibition of cell wall synthesis, was found to provide improvements in antimicrobial potency (200-fold) against vancomycin-resistant Enterococci (VRE). Furthermore, it is shown that this type of C-terminal modification may be combined with a second peripheral (4-chlorobiphenyl)methyl (CBP) addition to the vancomycin disaccharide to provide even more potent antimicrobial agents [VRE minimum inhibitory concentration (MIC) = 0.01-0.005 μg/mL] with activity that can be attributed to three independent and synergistic mechanisms of action, only one of which requires d-Ala-d-Ala/d-Ala-d-Lac binding. Finally, it is shown that such peripherally and binding pocket-modified vancomycin analogs display little propensity for acquired resistance by VRE and that their durability against such challenges as well as their antimicrobial potency follow now predictable trends (three > two > one mechanisms of action). Such antibiotics are expected to display durable antimicrobial activity not prone to rapidly acquired clinical resistance.

Indexed as

Anti-Bacterial AgentsVancomycinCell WallEnterococcus faecalisEnterococcus faeciumVancomycin ResistanceAnti-Bacterial AgentsVancomycinantibioticsresistant bacterial infectionsvancomycin

Identifiers

PMID28559345
PMCPMC5495262
OpenAlexW2617790881

What OpenQuestion holds

Textmetadata
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.