Evidence map›Paper›PMID 19114674›Full record

ArticleAntimicrobial agents and chemotherapy2009

SC29EK, a peptide fusion inhibitor with enhanced alpha-helicity, inhibits replication of human immunodeficiency virus type 1 mutants resistant to enfuvirtide.

Takeshi Naito, Kazuki Izumi, Eiichi Kodama, Yasuko Sakagami, Keiko Kajiwara, Hiroki Nishikawa, Kentaro Watanabe, Stefan G Sarafianos, Shinya Oishi, Nobutaka Fujii and 1 more

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

41 citing papers in PubMed, 77 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Sulfono-γ-AA modified peptides that inhibit HIV-1 fusion.Organic & biomolecular chemistry · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  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

11 authors at 2 institutions in 2 countries.

Takeshi NaitoLaboratory of Virus Control, Institute for Virus Research, Kyoto University, Shogoin, Kyoto, Japan.
Kazuki Izumi
Eiichi Kodama
Yasuko Sakagami
Keiko Kajiwara
Hiroki Nishikawa
Kentaro Watanabe
Stefan G Sarafianos
Shinya Oishi
Nobutaka Fujii
Masao Matsuoka
Kyoto University · JPUniversity of Missouri · US

Funding

Ultrapotent Inhibitors of Wild-type and Multi-drug Resistant HIVR01AI076119 · NIAID · UNIVERSITY OF MISSOURI-COLUMBIA · PI SARAFIANOS, STEFAN G · 2008 to 2018
$4.1M
Microbicide properties of RT inhibitor combinationsR21AI079801 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI PARNIAK, MICHAEL A · 2008 to 2009
$421k
NIAID NIH HHS 1R21AI079801NIAID NIH HHS R01 AI076119NIAID NIH HHS R01AI076119NIAID NIH HHS R21 AI079801
6 · The paper itself

Abstract

Peptides derived from the alpha-helical domains of human immunodeficiency virus (HIV) type 1 (HIV-1) gp41 inhibit HIV-1 fusion to the cell membrane. Enfuvirtide (T-20) is a peptide-based drug that targets the step of HIV fusion, and as such, it effectively suppresses the replication of HIV-1 strains that are either wild type or resistant to multiple reverse transcriptase and/or protease inhibitors. However, HIV-1 variants with T-20 resistance have emerged; therefore, the development of new and potent inhibitors is urgently needed. We have developed a novel HIV fusion inhibitor, SC34EK, which is a gp41-derived 34-amino-acid peptide with glutamate (E) and lysine (K) substitutions on its solvent-accessible site that stabilize its alpha-helicity. Importantly, SC34EK effectively inhibits the replication of T-20-resistant HIV-1 strains as well as wild-type HIV-1. In this report, we introduce SC29EK, a 29-amino-acid peptide that is a shorter variant of SC34EK. SC29EK blocked the replication of T-20-resistant HIV-1 strains and maintained antiviral activity even in the presence of high serum concentrations (up to 50%). Circular dichroism analysis revealed that the alpha-helicity of SC29EK was well maintained, while that of the parental peptide, C29, which showed moderate and reduced inhibition of wild-type and T-20-resistant HIV-1 strains, was lower. Our results show that the alpha-helicity in a peptide-based fusion inhibitor is a key factor for activity and enables the design of short peptide inhibitors with improved pharmacological properties.

Indexed as

Amino Acid SequenceAmino Acid SubstitutionCircular DichroismDrug Resistance, ViralEnfuvirtideHeLa CellsHIV-1HIV Envelope Protein gp41HIV Fusion InhibitorsHumansMolecular Sequence DataPeptide FragmentsPeptidesProtein Structure, SecondaryVirus ReplicationEnfuvirtideHIV Envelope Protein gp41HIV Fusion InhibitorsPeptide FragmentsPeptidesSC29EK peptide

Identifiers

PMID19114674
PMCPMC2650564
OpenAlexW2098487788

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.