Evidence map›Paper›PMID 21855358›Full record

ArticleBioorganic & medicinal chemistry2011

Inhibition of LuxS by S-ribosylhomocysteine analogues containing a [4-aza]ribose ring.

Venkata L A Malladi, Adam J Sobczak, Tiffany M Meyer, Dehua Pei, Stanislaw F Wnuk

Open access · greenAbstract read
In one paragraph

Article in Bioorganic & medicinal chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Exploiting quorum sensing to confuse bacterial pathogens.Microbiology and molecular biology reviews : MMBR · 2013
    Review
  16. Article
  17. Journal of sulphur chemistry
    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

5 authors at 2 institutions in 1 country.

Venkata L A MalladiDepartment of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA.
Adam J Sobczak
Tiffany M Meyer
Dehua Pei
Stanislaw F Wnuk
Florida International University · USThe Ohio State University · US

Funding

Mechanism and Inhibition of S-RibosylhomocysteinaseR01AI062901 · NIAID · OHIO STATE UNIVERSITY · PI PEI, DEHUA · 2005 to 2009
$1.4M
Developing Inhibitors of LuxS-dependent Quorum Sensing Systems in Oral BacteriaR01DE019667 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI LI, CHUNHAO CHRIS · 2010 to 2013
$1.4M
Nucleoside and Carbohydrate-based Enzyme InhibitorsSC1CA138176 · NCI · FLORIDA INTERNATIONAL UNIVERSITY · PI WNUK, STANISLAW F · 2008 to 2011
$818k
NCI NIH HHS SC1 CA138176NCI NIH HHS SC1CA138176NIAID NIH HHS AI62901NIAID NIH HHS R01 AI062901NIDCR NIH HHS DE019667NIDCR NIH HHS R01 DE019667
6 · The paper itself

Abstract

LuxS (S-ribosylhomocysteinase) catalyzes the cleavage of the thioether linkage of S-ribosylhomocysteine (SRH) to produce homocysteine and 4,5-dihydroxy-2,3-pentanedione (DPD), the precursor to a small signaling molecule that mediates interspecies bacterial communication called autoinducer 2 (AI-2). Inhibitors of LuxS should interfere with bacterial interspecies communication and potentially provide a novel class of antibacterial agents. In this work, SRH analogues containing substitution of a nitrogen atom for the endocyclic oxygen as well as various deoxyriboses were synthesized and evaluated for LuxS inhibition. Two of the [4-aza]SRH analogues showed modest competitive inhibition (K(I) ∼40 μM), while most of the others were inactive. One compound that contains a hemiaminal moiety exhibited time-dependent inhibition, consistent with enzyme-catalyzed ring opening and conversion into a more potent species (K(I)(∗)=3.5 μM). The structure-activity relationship of the designed inhibitors highlights the importance of both the homocysteine and ribose moieties for high-affinity binding to LuxS active site.

Indexed as

Bacillus subtilisBacterial ProteinsCarbon-Sulfur LyasesDose-Response Relationship, DrugHomocysteineMolecular StructureRiboseStereoisomerismStructure-Activity RelationshipBacterial ProteinsCarbon-Sulfur LyasesHomocysteineLuxS protein, BacteriaRiboseS-ribosyl-L-homocysteine

Identifiers

PMID21855358
PMCPMC3171632
OpenAlexW2054438003

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.