Evidence map›Paper›PMID 32774871›Full record

ArticleOrganic chemistry frontiers : an international journal of organic chemistry2019

An Empirical Study of Amide-Heteroarene π-Stacking Interactions Using Reversible Inhibitors of a Bacterial Serine Hydrolase.

Kyle DeFrees, M Trent Kemp, Xochina ElHilali-Pollard, Xiujun Zhang, Ahmed Mohamed, Yu Chen, Adam R Renslo

Open access · greenAbstract read
In one paragraph

Article in Organic chemistry frontiers : an international journal of organic chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

7 citing papers in PubMed, 18 citations in OpenAlex.

  1. Hidden Interactions: Quantum Perspectives in Drug Design.Methods in molecular biology (Clifton, N.J.) · 2026
    Review
  2. Review
  3. Stacking Interactions of Druglike Heterocycles with Nucleobases.Journal of chemical information and modeling · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Urea-aromatic interactions in biology.Biophysical reviews · 2020
    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

7 authors at 2 institutions in 1 country.

Kyle DeFreesDepartment of Pharmaceutical Chemistry, University of California San Francisco, 600 16th St., San Francisco, California 94158, United States.
M Trent KempDepartment of Molecular Medicine, University of South Florida College of Medicine, 12901, Bruce B. Downs Blvd, MDC 3522, Tampa, Florida 33612, United States.
Xochina ElHilali-PollardDepartment of Pharmaceutical Chemistry, University of California San Francisco, 600 16th St., San Francisco, California 94158, United States.
Xiujun ZhangDepartment of Molecular Medicine, University of South Florida College of Medicine, 12901, Bruce B. Downs Blvd, MDC 3522, Tampa, Florida 33612, United States.
Ahmed MohamedDepartment of Pharmaceutical Chemistry, University of California San Francisco, 600 16th St., San Francisco, California 94158, United States.
Yu ChenDepartment of Molecular Medicine, University of South Florida College of Medicine, 12901, Bruce B. Downs Blvd, MDC 3522, Tampa, Florida 33612, United States.
Adam R RensloDepartment of Pharmaceutical Chemistry, University of California San Francisco, 600 16th St., San Francisco, California 94158, United States.
University of California, San Francisco · USUniversity of South Florida · US

Funding

RESEARCH TRAINING IN CHEMISTRY AND CHEMICAL BIOLOGYT32GM064337 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CRAIK, CHARLES SCOTT · 2002 to 2021
$7.8M
Evolution and inhibition of beta-lactamase activity in antibiotic resistanceR01AI103158 · NIAID · UNIVERSITY OF SOUTH FLORIDA · PI CHEN, YU · 2013 to 2017
$2.0M
NIAID NIH HHS R01 AI103158NIGMS NIH HHS T32 GM064337
6 · The paper itself

Abstract

Compared to aryl-aryl π-stacking interactions, the analogous stacking of heteroarenes on amide π systems is less well understood and vastly underutilized in structure-based drug design. Recent theoretical studies have delineated the important geometric coordinates of the interaction, some of which have been confirmed with synthetic model systems based on Rebek imides. Unfortunately, a broadly useful and tractable protein-ligand model system of this interaction has remained elusive. Here we employed a known inhibitor scaffold to study π-stacking of diverse heteroarene substituents on the amide face of Gly238 in the cephalosporinases CTX-M-14 and CTX-M-27. Biochemical inhibition constants (

Identifiers

PMID32774871
PMCPMC7410147
OpenAlexW2945542316

What OpenQuestion holds

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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.