Evidence map›Paper›PMID 17616582›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Hot spots in prion protein for pathogenic conversion.

Kazuo Kuwata, Noriyuki Nishida, Tomoharu Matsumoto, Yuji O Kamatari, Junji Hosokawa-Muto, Kota Kodama, Hironori K Nakamura, Kiminori Kimura, Makoto Kawasaki, Yuka Takakura and 4 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

66 citing papers in PubMed, 178 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Therapeutic Trajectories in Human Prion Diseases.Sub-cellular biochemistry · 2025
    Review
  6. Adaptation of the protein misfolding cyclic amplification (PMCA) technique for the screening of anti-prion compounds.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  7. Article
  8. Synthesis and anti-prion aggregation activity of acylthiosemicarbazide analogues.Journal of enzyme inhibition and medicinal chemistry · 2023
    Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Direct interaction of DNMT inhibitors to PrPActa pharmaceutica Sinica. B · 2019
    Article

6 more citing papers are in PubMed but not listed here.

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

14 authors at 3 institutions in 3 countries.

Kazuo KuwataCenter for Emerging Infectious Diseases, Department of Gene and Development, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan. kuwata@gifu-u.ac.jp
Noriyuki Nishida
Tomoharu Matsumoto
Yuji O Kamatari
Junji Hosokawa-Muto
Kota Kodama
Hironori K Nakamura
Kiminori Kimura
Makoto Kawasaki
Yuka Takakura
Susumu Shirabe
Jiro Takata
Yasufumi Kataoka
Shigeru Katamine
Fukuoka University · JPCenter of Molecular Immunology (Cuba) · CUNational Center for Emerging and Zoonotic Infectious Diseases · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Prion proteins are key molecules in transmissible spongiform encephalopathies (TSEs), but the precise mechanism of the conversion from the cellular form (PrP(C)) to the scrapie form (PrP(Sc)) is still unknown. Here we discovered a chemical chaperone to stabilize the PrP(C) conformation and identified the hot spots to stop the pathogenic conversion. We conducted in silico screening to find compounds that fitted into a "pocket" created by residues undergoing the conformational rearrangements between the native and the sparsely populated high-energy states (PrP*) and that directly bind to those residues. Forty-four selected compounds were tested in a TSE-infected cell culture model, among which one, 2-pyrrolidin-1-yl-N-[4-[4-(2-pyrrolidin-1-yl-acetylamino)-benzyl]-phenyl]-acetamide, termed GN8, efficiently reduced PrP(Sc). Subsequently, administration of GN8 was found to prolong the survival of TSE-infected mice. Heteronuclear NMR and computer simulation showed that the specific binding sites are the A-S2 loop (N159) and the region from helix B (V189, T192, and K194) to B-C loop (E196), indicating that the intercalation of these distant regions (hot spots) hampers the pathogenic conversion process. Dynamics-based drug discovery strategy, demonstrated here focusing on the hot spots of PrP(C), will open the way to the development of novel anti-prion drugs.

Indexed as

AcetamidesAnimalsComputational BiologyMiceProtein Structure, SecondaryPrPC ProteinsRecombinant ProteinsAcetamidesPrPC ProteinsRecombinant Proteins

Identifiers

PMID17616582
PMCPMC1924567
OpenAlexW2133721984

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.