Evidence map›Paper›PMID 32898696›Full record

ArticleBioorganic & medicinal chemistry letters2020

Probing the B- & C-rings of the antimalarial tetrahydro-β-carboline MMV008138 for steric and conformational constraints.

Sha Ding, Maryam Ghavami, Joshua H Butler, Emilio F Merino, Carla Slebodnick, Maria B Cassera, Paul R Carlier

Abstract read
In one paragraph

Article in Bioorganic & medicinal chemistry letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. TargetingJournal of medicinal chemistry · 2024
    Article
  5. Antimalarial drug discovery: progress and approaches.Nature reviews. Drug discovery · 2023
    Review
  6. Article
  7. Malaria Box-Inspired Discovery ofACS medicinal chemistry letters · 2022
    Article
  8. 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

7 authors.

Sha DingDepartment of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States.
Maryam GhavamiDepartment of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States.
Joshua H ButlerDepartment of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, 120 Green Street, Athens, GA 30602, United States.
Emilio F MerinoDepartment of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, 120 Green Street, Athens, GA 30602, United States.
Carla SlebodnickDepartment of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States.
Maria B CasseraDepartment of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, 120 Green Street, Athens, GA 30602, United States.
Paul R CarlierDepartment of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, Blacksburg, VA 24061, United States. Electronic address: pcarlier@vt.edu.

Funding

Training in Tropical and Emerging Global Diseases - SupplementT32AI060546 · NIAID · UNIVERSITY OF GEORGIA (UGA) · PI Silvia N Moreno, Vasant Muralidharan · 2004 to 2026
$5.1M
Characterization of isoprenoid biosynthesis in human malaria gametocytesR01AI108819 · NIAID · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI CASSERA, MARIA BELEN · 2014 to 2018
$1.9M
Structure- and ligand-based design of new IspD-targeting antimalarialsR21AI128362 · NIAID · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI CARLIER, PAUL R · 2017 to 2018
$431k
NIAID NIH HHS R01 AI108819NIAID NIH HHS R21 AI128362NIAID NIH HHS T32 AI060546
6 · The paper itself

Abstract

The antimalarial candidate MMV008138 (1a) is of particular interest because its target enzyme (IspD) is absent in human. To achieve higher potency, and to probe for steric demand, a series of analogs of 1a were prepared that featured methyl-substitution of the B- and C-rings, as well as ring-chain transformations. X-ray crystallography, NMR spectroscopy and calculation were used to study the effects of these modifications on the conformation of the C-ring and orientation of the D-ring. Unfortunately, all the B- and C-ring analogs explored lost in vitro antimalarial activity. The possible role of steric effects and conformational changes on target engagement are discussed.

Indexed as

AntimalarialsCarbolinesDose-Response Relationship, DrugMolecular ConformationParasitic Sensitivity TestsPipecolic AcidsPlasmodium falciparumStructure-Activity RelationshipAntimalarialsCarbolinesMMV008138Pipecolic AcidsMalariaMEP pathwayPfIspDPlasmodium

Identifiers

PMID32898696
PMCPMC7686247

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.