Evidence map›Paper›PMID 32663666›Full record

ArticleBioorganic chemistry2020

Synthesis and evaluation of sulfonyl piperazine LpxH inhibitors.

Seung-Hwa Kwak, C Skyler Cochrane, Amanda F Ennis, Won Young Lim, Caroline G Webster, Jae Cho, Benjamin A Fenton, Pei Zhou, Jiyong Hong

Open access · greenAbstract read
In one paragraph

Article in Bioorganic chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

9 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Review
  3. Fighting Antimicrobial Resistance: Innovative Drugs in Antibacterial Research.Angewandte Chemie (International ed. in English) · 2025
    Review
  4. Article
  5. Antibiotic class with potent in vivo activity targeting lipopolysaccharide synthesis in Gram-negative bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Review
  7. Article
  8. Review
  9. 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 at 3 institutions in 1 country.

Seung-Hwa KwakDepartment of Chemistry, Duke University, Durham, NC 27708, United States.
C Skyler CochraneDepartment of Chemistry, Duke University, Durham, NC 27708, United States.
Amanda F EnnisDepartment of Chemistry, Duke University, Durham, NC 27708, United States.
Won Young LimDepartment of Chemistry, Duke University, Durham, NC 27708, United States.
Caroline G WebsterDepartment of Chemistry, Duke University, Durham, NC 27708, United States.
Jae ChoDepartment of Biochemistry, Duke University Medical Center, Durham, NC 27710, United States.
Benjamin A FentonDepartment of Biochemistry, Duke University Medical Center, Durham, NC 27710, United States.
Pei ZhouDepartment of Chemistry, Duke University, Durham, NC 27708, United States; Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, United States. Electronic address: peizhou@biochem.duke.edu.
Jiyong HongDepartment of Chemistry, Duke University, Durham, NC 27708, United States; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, 27710, United States. Electronic address: jiyong.hong@duke.edu.
Duke University · USDuke Medical Center · USDuke University Hospital · US

Funding

User Training and OutreachP30GM124165 · NIGMS · CORNELL UNIVERSITY · PI MALCOLM S. CAPEL · 2018 to 2026
$34.2M
Pharmacological Sciences Training ProgramT32GM007105 · NIGMS · DUKE UNIVERSITY · PI KUHN, CYNTHIA M · 1985 to 2019
$9.0M
Discovery and validation of broadly effective LpxH inhibitors as novel therapeutics against multi-drug resistant Gram-negative pathogensR01AI139216 · NIAID · DUKE UNIVERSITY · PI ZHOU, PEI · 2019 to 2022
$1.9M
Pixel Array Detector for X-ray CrystallographyS10RR029205 · NCRR · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2010 to 2010
$1.8M
Biochemistry and Structure of Lipid A EnzymesR01GM115355 · NIGMS · DUKE UNIVERSITY · PI ZHOU, PEI · 2016 to 2019
$1.2M
Discovery and validation of broadly effective LpxH inhibitors as novel therapeutics against multi-drug resistant Gram-negative pathogensR56AI139216 · NIAID · DUKE UNIVERSITY · PI ZHOU, PEI · 2018 to 2018
$393k
NCRR NIH HHS S10 RR029205NIAID NIH HHS R01 AI139216NIAID NIH HHS R56 AI139216NIGMS NIH HHS P30 GM124165NIGMS NIH HHS R01 GM115355NIGMS NIH HHS T32 GM007105
6 · The paper itself

Abstract

The UDP-2,3-diacylglucosamine pyrophosphate hydrolase LpxH is essential in lipid A biosynthesis and has emerged as a promising target for the development of novel antibiotics against multidrug-resistant Gram-negative pathogens. Recently, we reported the crystal structure of Klebsiella pneumoniae LpxH in complex with 1 (AZ1), a sulfonyl piperazine LpxH inhibitor. The analysis of the LpxH-AZ1 co-crystal structure and ligand dynamics led to the design of 2 (JH-LPH-28) and 3 (JH-LPH-33) with enhanced LpxH inhibition. In order to harness our recent findings, we prepared and evaluated a series of sulfonyl piperazine analogs with modifications in the phenyl and N-acetyl groups of 3. Herein, we describe the synthesis and structure-activity relationship of sulfonyl piperazine LpxH inhibitors. We also report the structural analysis of an extended N-acyl chain analog 27b (JH-LPH-41) in complex with K. pneumoniae LpxH, revealing that 27b reaches an untapped polar pocket near the di-manganese cluster in the active site of K. pneumoniae LpxH. We expect that our findings will provide designing principles for new LpxH inhibitors and establish important frameworks for the future development of antibiotics against multidrug-resistant Gram-negative pathogens.

Indexed as

Antinematodal AgentsEnzyme InhibitorsHumansPiperazineStructure-Activity RelationshipAntinematodal AgentsEnzyme InhibitorsPiperazineAntibioticsGram-negative bacteriaLipid ALpxHStructure–activity relationshipSulfonyl piperazine

Identifiers

PMID32663666
PMCPMC7484203
OpenAlexW3040112143

What OpenQuestion holds

Textmetadata
LicenceTDM
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.