Evidence map›Paper›PMID 23054332›Full record

ArticleThe protein journal2012

Effect of mid-infrared free-electron laser irradiation on refolding of amyloid-like fibrils of lysozyme into native form.

Takayasu Kawasaki, Jun Fujioka, Takayuki Imai, Koichi Tsukiyama

Open access · hybridAbstract read
In one paragraph

Article in The protein journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

12 citing papers in PubMed, 34 citations in OpenAlex.

  1. Disassembly of Amyloid Fibril with Infrared Free Electron Laser.International journal of molecular sciences · 2023
    Review
  2. Article
  3. Article
  4. Computer Simulations Aimed at Exploring Protein Aggregation and Dissociation.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
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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

4 authors at 1 institution in 1 country.

Takayasu KawasakiIR Free Electron Laser Research Center, Research Institute for Science and Technology (RIST), Tokyo University of Science, Yamazaki, Noda, Chiba, Japan. kawasaki@rs.tus.ac.jp
Jun Fujioka
Takayuki Imai
Koichi Tsukiyama
Tokyo University of Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aggregation of lysozyme in an acidic solution generates inactive amyloid-like fibrils, with a broad infrared peak appearing at 1,610-1,630 cm(-1), characteristic of a β-sheet rich structure. We report here that spontaneous refolding of these fibrils in water could be promoted by mid-infrared free-electron laser (mid-IR FEL) irradiation targeting the amide bands. The Fourier transform infrared spectrum of the fibrils reflected a β-sheet content that was as low as that of the native structure, following FEL irradiation at 1,620 cm(-1) (amide I band); both transmission-electron microscopy imaging and Congo Red assay results also demonstrated a reduced fibril structure, and the enzymatic activity of lysozyme fibrils recovered to 70-90 % of the native form. Both irradiations at 1,535 cm(-1)(amide II band) and 1,240 cm(-1) (amide III band) were also more effective for the refolding of the fibrils than mere heating in the absence of FEL. On the contrary, either irradiation at 1,100 or 2,000 cm(-1) afforded only about 60 % recovery of lysozyme activity. These results indicate that the specific FEL irradiation tuned to amide bands is efficient in refolding of lysozyme fibrils into native form.

Indexed as

Infrared RaysAmyloidAnimalsChickensCongo RedLasersMuramidaseProtein BindingProtein ConformationProtein RefoldingSpectrum AnalysisAmyloidCongo Redhen egg lysozymeMuramidase

Identifiers

PMID23054332
PMCPMC3483483
OpenAlexW2023091769

What OpenQuestion holds

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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.