Evidence map›Paper›PMID 21357691›Full record

ArticleThe Journal of biological chemistry2011

Vipirinin, a coumarin-based HIV-1 Vpr inhibitor, interacts with a hydrophobic region of VPR.

Eugene Boon Beng Ong, Nobumoto Watanabe, Akiko Saito, Yushi Futamura, Khaled Hussein Abd El Galil, Atsushi Koito, Nazalan Najimudin, Hiroyuki Osada

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

22 citing papers in PubMed, 93 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Inhibitory Effects of Coumarin Derivatives on Tyrosinase.Molecules (Basel, Switzerland) · 2021
    Article
  8. Article
  9. Review
  10. Bioactive Compounds from Medicinal Plants in Myanmar.Progress in the chemistry of organic natural products · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. The HIV-1 Vpr Protein: A Multifaceted Target for Therapeutic Intervention.International journal of molecular sciences · 2017
    Review
  16. Article
  17. Therapeutic potential of coumarins as antiviral agents.European journal of medicinal chemistry · 2016
    Review
  18. Esculin and its oligomer fractions inhibit adhesion and migration of U87 glioblastoma cells and in vitro angiogenesis.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    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

8 authors at 3 institutions in 2 countries.

Eugene Boon Beng OngFrom the Chemical Biology Core Facility, Chemical Biology Department, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
Nobumoto Watanabe
Akiko Saito
Yushi Futamura
Khaled Hussein Abd El Galil
Atsushi Koito
Nazalan Najimudin
Hiroyuki Osada
RIKEN Advanced Science Institute · JPKumamoto University · JPUniversiti Sains Malaysia · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The human immunodeficiency virus 1 (HIV-1) viral protein R (Vpr) is an accessory protein that has been shown to have multiple roles in HIV-1 pathogenesis. By screening chemical libraries in the RIKEN Natural Products Depository, we identified a 3-phenyl coumarin-based compound that inhibited the cell cycle arrest activity of Vpr in yeast and Vpr-dependent viral infection of human macrophages. We determined its minimal pharmacophore through a structure-activity relationship study and produced more potent derivatives. We detected direct binding, and by assaying a panel of Vpr mutants, we found the hydrophobic region about residues Glu-25 and Gln-65 to be potentially involved in the binding of the inhibitor. Our findings exposed a targeting site on Vpr and delineated a convenient approach to explore other targeting sites on the protein using small molecule inhibitors as bioprobes.

Indexed as

Anti-HIV AgentsBinding, CompetitiveBinding SitesCarbamatesCoumarinsDose-Response Relationship, DrugDrug DesignGlutamic AcidGlutamineHumansMacrophagesMutationProtein BindingProtein Structure, TertiaryStructure-Activity Relationshipvpr Gene Products, Human Immunodeficiency VirusAnti-HIV AgentsCarbamatescoumarinCoumarinsGlutamic AcidGlutaminevipirininvpr Gene Products, Human Immunodeficiency Virus

Identifiers

PMID21357691
PMCPMC3077605
OpenAlexW2096842719

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.