Evidence map›Paper›PMID 33184314›Full record

ArticleScientific reports2020

Construction of an artificial system for ambrein biosynthesis and investigation of some biological activities of ambrein.

Yota Yamabe, Yukina Kawagoe, Kotone Okuno, Mao Inoue, Kanako Chikaoka, Daijiro Ueda, Yuko Tajima, Tadasu K Yamada, Yoshito Kakihara, Takashi Hara and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.3field-weighted citation impact, top 42% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

  1. Catalytic Asymmetric Cationic Geranyl Cyclizations.Journal of the American Chemical Society · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Efforts toward Ambergris Biosynthesis.Chem & bio engineering · 2024
    Review
  6. 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 1 country.

Yota YamabeDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan.
Yukina KawagoeDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan.
Kotone OkunoDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan.
Mao InoueDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan.
Kanako ChikaokaDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan.
Daijiro UedaDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan.
Yuko TajimaDepartment of Zoology, National Museum of Nature and Science, 4-1-1Amakubo, Tsukuba, Ibaraki, Japan.
Tadasu K YamadaDepartment of Zoology, National Museum of Nature and Science, 4-1-1Amakubo, Tsukuba, Ibaraki, Japan.
Yoshito KakiharaDivision of Dental Pharmacology, Department of Tissue Regeneration and Reconstruction, Faculty of Dentistry, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, 951-8514, Japan. kakihara@dent.niigata-u.ac.jp.
Takashi HaraDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan. harata@agr.niigata-u.ac.jp.
Tsutomu SatoDepartment of Agriculture, Faculty of Agriculture, and Graduate School of Science and Technology, Niigata University, 8050, Ikarashi-2, Nishi-ku, Niigata, Japan. satot@agr.niigata-u.ac.jp.
Niigata University · JPNational Museum of Nature and Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ambergris, a sperm whale metabolite, has long been used as a fragrance and traditional medication, but it is now rarely available. The odor components of ambergris result from the photooxidative degradation of the major component, ambrein. The pharmacological activities of ambergris have also been attributed to ambrein. However, efficient production of ambrein and odor compounds has not been achieved. Here, we constructed a system for the synthesis of ambrein and odor components. First, we created a new triterpene synthase, "ambrein synthase," for mass production of ambrein by redesigning a bacterial enzyme. The ambrein yields were approximately 20 times greater than those reported previously. Next, an efficient photooxidative conversion system from ambrein to a range of volatiles of ambergris was established. The yield of volatiles was 8-15%. Finally, two biological activities, promotion of osteoclast differentiation and prevention of amyloid β-induced apoptosis, were discovered using the synthesized ambrein.

Indexed as

ApoptosisAmbergrisAmyloid beta-PeptidesAnimalsCell DifferentiationCell LineHumansNaphtholsOsteoclastsSperm WhaleTriterpenesVolatile Organic CompoundsAmbergrisambreinAmyloid beta-PeptidesNaphtholsTriterpenesVolatile Organic Compounds

Identifiers

PMID33184314
PMCPMC7661701
OpenAlexW3105937497

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.