Evidence map›Paper›PMID 21228241›Full record

ArticleJournal of virology2011

Glycosylphosphatidylinositol anchor-dependent stimulation pathway required for generation of baculovirus-derived recombinant scrapie prion protein.

Morikazu Imamura, Nobuko Kato, Miyako Yoshioka, Hiroyuki Okada, Yoshifumi Iwamaru, Yoshihisa Shimizu, Shirou Mohri, Takashi Yokoyama, Yuichi Murayama

Abstract read
In one paragraph

Article in Journal of virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Journal of virology · 2017
    Article
  5. Article
  6. Article
  7. Article
  8. De novo generation of infectious prions with bacterially expressed recombinant prion protein.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
    Article
  9. Article
  10. Article
  11. 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

9 authors.

Morikazu ImamuraPrion Disease Research Center, National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan.
Nobuko Kato
Miyako Yoshioka
Hiroyuki Okada
Yoshifumi Iwamaru
Yoshihisa Shimizu
Shirou Mohri
Takashi Yokoyama
Yuichi Murayama

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pathogenic isoform (PrP(Sc)) of the host-encoded cellular prion protein (PrP(C)) is considered to be an infectious agent of transmissible spongiform encephalopathy (TSE). The detailed mechanism by which the PrP(Sc) seed catalyzes the structural conversion of endogenous PrP(C) into nascent PrP(Sc) in vivo still remains unclear. Recent studies reveal that bacterially derived recombinant PrP (recPrP) can be used as a substrate for the in vitro generation of protease-resistant recPrP (recPrP(res)) by protein-misfolding cyclic amplification (PMCA). These findings imply that PrP modifications with a glycosylphosphatidylinositol (GPI) anchor and asparagine (N)-linked glycosylation are not necessary for the amplification and generation of recPrP(Sc) by PMCA. However, the biological properties of PrP(Sc) obtained by in vivo transmission of recPrP(res) are unique or different from those of PrP(Sc) used as the seed, indicating that the mechanisms mediated by these posttranslational modifications possibly participate in reproductive propagation of PrP(Sc). In the present study, using baculovirus-derived recombinant PrP (Bac-PrP), we demonstrated that Bac-PrP is useful as a PrP(C) substrate for amplification of the mouse scrapie prion strain Chandler, and PrP(Sc) that accumulated in mice inoculated with Bac-PrP(res) had biochemical and pathological properties very similar to those of the PrP(Sc) seed. Since Bac-PrP modified with a GPI anchor and brain homogenate of Prnp knockout mice were both required to generate Bac-PrP(res), the interaction of GPI-anchored PrP with factors in brain homogenates is essential for reproductive propagation of PrP(Sc). Therefore, the Bac-PMCA technique appears to be extremely beneficial for the comprehensive understanding of the GPI anchor-mediated stimulation pathway.

Indexed as

ScrapieAnimalsBaculoviridaeGenetic VectorsGlycosylphosphatidylinositolsMicePrion ProteinsPrionsRecombinant ProteinsGlycosylphosphatidylinositolsPrion ProteinsPrionsPrnp protein, mouseRecombinant Proteins

Identifiers

PMID21228241
PMCPMC3067941

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.