Evidence map›Paper›PMID 29086455›Full record

ArticleThe Plant journal : for cell and molecular biology2018

Identification and functional characterization of diterpene synthases for triptolide biosynthesis from Tripterygium wilfordii.

Ping Su, Hongyu Guan, Yujun Zhao, Yuru Tong, Meimei Xu, Yifeng Zhang, Tianyuan Hu, Jian Yang, Qiqing Cheng, Linhui Gao and 5 more

Open access · greenAbstract read
In one paragraph

Article in The Plant journal : for cell and molecular biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
7.4field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 66 citations in OpenAlex.

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  15. Origin and early evolution of the plant terpene synthase family.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  16. Identification of (-)-bornyl diphosphate synthase fromSynthetic and systems biotechnology · 2022
    Article
  17. Article
  18. Article
  19. Article
  20. Bornyl Diphosphate Synthase FromFrontiers in bioengineering and biotechnology · 2021
    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

15 authors at 5 institutions in 3 countries.

Ping SuState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Hongyu GuanState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Yujun ZhaoState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Yuru TongState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Meimei XuRoy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA.
Yifeng ZhangState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Tianyuan HuSchool of Traditional Chinese Medicine, Capital Medical University, No. 10 Xitoutiao, Beijing, 100069, China.
Jian YangState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Qiqing ChengState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Linhui GaoState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Yujia LiuSchool of Traditional Chinese Medicine, Capital Medical University, No. 10 Xitoutiao, Beijing, 100069, China.
Jiawei ZhouSchool of Traditional Chinese Medicine, Capital Medical University, No. 10 Xitoutiao, Beijing, 100069, China.
Reuben J PetersRoy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA.
Luqi HuangState Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16 Nanxiao Rd., Beijing, 100700, China.
Wei GaoSchool of Traditional Chinese Medicine, Capital Medical University, No. 10 Xitoutiao, Beijing, 100069, China.
China Academy of Chinese Medical Sciences · CNCapital Medical University · CNBeijing Hospital of Traditional Chinese Medicine · CNIowa State University · USChinese Academy of Medical Sciences & Peking Union Medical College · CN

Funding

Elucidating the elaboration of plant diterpenoid natural productsR01GM109773 · NIGMS · IOWA STATE UNIVERSITY · PI PETERS, REUBEN JOHN · 2015 to 2018
$1.1M
NIGMS NIH HHS R01 GM109773
6 · The paper itself

Abstract

Tripterygium wilfordii, which has long been used as a medicinal plant, exhibits impressive and effective anti-inflammatory, immunosuppressive and anti-tumor activities. The main active ingredients are diterpenoids and triterpenoids, such as triptolide and celastrol, respectively. A major challenge to harnessing these natural products is that they are found in very low amounts in planta. Access has been further limited by the lack of knowledge regarding their underlying biosynthetic pathways, particularly for the abeo-abietane tri-epoxide lactone triptolide. Here suspension cell cultures of T. wilfordii were found to produce triptolide in an inducible fashion, with feeding studies indicating that miltiradiene is the relevant abietane olefin precursor. Subsequently, transcriptome data were used to identify eight putative (di)terpene synthases that were then characterized for their potential involvement in triptolide biosynthesis. This included not only biochemical studies which revealed the expected presence of class II diterpene cyclases that produce the intermediate copalyl diphosphate (CPP), along with the more surprising finding of an atypical class I (di)terpene synthase that acts on CPP to produce the abietane olefin miltiradiene, but also their subcellular localization and, critically, genetic analysis. In particular, RNA interference targeting either both of the CPP synthases, TwTPS7v2 and TwTPS9v2, or the subsequently acting miltiradiene synthase, TwTPS27v2, led to decreased production of triptolide. Importantly, these results then both confirm that miltiradiene is the relevant precursor and the relevance of the identified diterpene synthases, enabling future studies of the biosynthesis of this important bioactive natural product.

Indexed as

Alkyl and Aryl TransferasesBiosynthetic PathwaysDiterpenesEpoxy CompoundsPhenanthrenesPhylogenyPlant ProteinsPlants, MedicinalRNA InterferenceTripterygiumAlkyl and Aryl TransferasesDiterpenesent-kaurene synthetase AEpoxy CompoundsPhenanthrenesPlant Proteinsterpene synthasetriptolidediterpene synthasemiltiradieneRNA interferenceTripterygium wilfordiitriptolide

Identifiers

PMID29086455
PMCPMC5848467
OpenAlexW2765845125

What OpenQuestion holds

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Registered trials

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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.