Evidence map›Paper›PMID 18273640›Full record

ArticlePlanta2008

Molecular cloning and functional characterization of alpha-humulene synthase, a possible key enzyme of zerumbone biosynthesis in shampoo ginger (Zingiber zerumbet Smith).

Fengnian Yu, Sho Okamto, Kaoru Nakasone, Kyoko Adachi, Satoru Matsuda, Hisashi Harada, Norihiko Misawa, Ryutaro Utsumi

Abstract read
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In one paragraph

Article in Planta, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
  2. Article
  3. Biologically Active Compounds of Malaysian Medicinal and Aromatic Plants.Progress in the chemistry of organic natural products · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. HarnessingJournal of natural products · 2022
    Review
  10. Chromosome-level genome assembly ofHorticulture research · 2022
    Article
  11. Understanding and Engineering the Stereoselectivity of Humulene Synthase.Angewandte Chemie (International ed. in English) · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Overexpression ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2016
    Article
  19. Article
  20. 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

8 authors at 2 institutions in 1 country.

Fengnian YuDepartment of Bioscience, Graduate School of Agriculture, Kinki University, 3327-204 Nakamachi, Nara, 631-8505, Japan.
Sho Okamto
Kaoru Nakasone
Kyoko Adachi
Satoru Matsuda
Hisashi Harada
Norihiko Misawa
Ryutaro Utsumi
Iwate Prefectural Kamaishi Hospital · JPKindai University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Shampoo ginger (Zingiber zerumbet Smith) has a high content and large variety of terpenoids in the essential oil of its rhizome. Here, we report on the isolation of a cDNA clone (ZSS1) encoding alpha-humulene synthase, a possible key enzyme of zerumbone biosynthesis. This clone contains an open reading frame of 1,644 bp and is predicted to encode a protein of 548 amino acids with a calculated molecular mass of 64.5 kDa. The deduced amino acid sequence shows 34-63% identity with known sesquiterpene synthases of other angiosperm species. Based on exon-intron organization, ZSS1 is classified as the terpene synthase-III (TPS-III) subfamily. When expressed in Escherichia coli, the recombinant enzyme catalyzed the formation of a major product, alpha-humulene (95%) and a minor by-product, beta-caryophyllene (5%). Introduction of ZSS1 and the foreign mevalonate pathway involved in FPP synthesis into E. coli results in in vivo production of alpha-humulene. Transcript of ZSS1 was detected almost exclusively in rhizomes and was up-regulated in both leaves and rhizomes after treatment with methyl jasmonate (MeJA), suggesting its ecological function in shampoo ginger.

Indexed as

Amino Acid SequenceCarbon-Oxygen LyasesConserved SequenceDNA, ComplementaryDNA, PlantDNA PrimersMolecular Sequence DataMonocyclic SesquiterpenesOpen Reading FramesPlant ProteinsReverse Transcriptase Polymerase Chain ReactionSequence Homology, Amino AcidSesquiterpenesZingiber officinalealpha-humulene synthase, Zingiber zerumbetCarbon-Oxygen LyasesDNA, ComplementaryDNA, PlantDNA PrimershumuleneMonocyclic SesquiterpenesPlant ProteinsSesquiterpeneszerumbone

Identifiers

PMID18273640
OpenAlexW2037837233

What OpenQuestion holds

Textmetadata
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.