Evidence map›Paper›PMID 31324795›Full record

ArticleNature communications2019

Repeated evolution of cytochrome P450-mediated spiroketal steroid biosynthesis in plants.

Bastien Christ, Chengchao Xu, Menglong Xu, Fu-Shuang Li, Naoki Wada, Andrew J Mitchell, Xiu-Lin Han, Meng-Liang Wen, Makoto Fujita, Jing-Ke Weng

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
7.2field-weighted citation impact, top 2% 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

94 citing papers in PubMed, 195 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Dynamic diversification of lignan metabolism in sesame via coordinated oxygenation and glucosylation across germination.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  7. Article
  8. Convergence and parallelism in the evolution of plant metabolism.Journal of integrative plant biology · 2026
    Review
  9. Article
  10. Article
  11. Plastid 2-oxoglutarate-dependent dioxygenases mediate stereoselective C14β-hydroxylation in cardenolide biosynthesis.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

34 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

10 authors at 5 institutions in 4 countries.

Bastien ChristWhitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA, 02142, USA.
Chengchao XuWhitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA, 02142, USA.
Menglong XuWhitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA, 02142, USA.
Fu-Shuang LiWhitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA, 02142, USA.
Naoki WadaDepartment of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.ORCID http://orcid.org/0000-0003-4271-4039
Andrew J MitchellWhitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA, 02142, USA.
Xiu-Lin HanState Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China.
Meng-Liang WenState Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, Yunnan, 650091, China.
Makoto FujitaDepartment of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
Jing-Ke WengWhitehead Institute for Biomedical Research, 455 Main Street, Cambridge, MA, 02142, USA. wengj@wi.mit.edu.ORCID http://orcid.org/0000-0003-3059-0075
Whitehead Institute for Biomedical Research · USYunnan University · CNAgroscope · CHNational Institutes of Natural Sciences · JPThe University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diosgenin is a spiroketal steroidal natural product extracted from plants and used as the single most important precursor for the world steroid hormone industry. The sporadic occurrences of diosgenin in distantly related plants imply possible independent biosynthetic origins. The characteristic 5,6-spiroketal moiety in diosgenin is reminiscent of the spiroketal moiety present in anthelmintic avermectins isolated from actinomycete bacteria. How plants gained the ability to biosynthesize spiroketal natural products is unknown. Here, we report the diosgenin-biosynthetic pathways in himalayan paris (Paris polyphylla), a monocot medicinal plant with hemostatic and antibacterial properties, and fenugreek (Trigonella foenum-graecum), an eudicot culinary herb plant commonly used as a galactagogue. Both plants have independently recruited pairs of cytochromes P450 that catalyze oxidative 5,6-spiroketalization of cholesterol to produce diosgenin, with evolutionary progenitors traced to conserved phytohormone metabolism. This study paves the way for engineering the production of diosgenin and derived analogs in heterologous hosts.

Indexed as

Biosynthetic PathwaysAnti-Bacterial AgentsCholesterolCytochrome P-450 Enzyme SystemCytochromesDiosgeninFuransGalactogoguesGene Expression ProfilingIvermectinLipogenesisMelanthiaceaeMetabolomicsPlant Growth RegulatorsSpiro CompoundsTrigonellaAnti-Bacterial AgentsavermectinCholesterolCytochrome P-450 Enzyme SystemCytochromesDiosgeninFuransGalactogoguesIvermectinPlant Growth RegulatorsSpiro Compoundsspiroketal

Identifiers

PMID31324795
PMCPMC6642093
OpenAlexW2964188239

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.