Evidence map›Paper›PMID 25489112›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Microbial biosynthesis of medium-chain 1-alkenes by a nonheme iron oxidase.

Zhe Rui, Xin Li, Xuejun Zhu, Joyce Liu, Bonnie Domigan, Ian Barr, Jamie H D Cate, Wenjun Zhang

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed
–field-weighted citation impact
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

88 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Heme oxygenase-like dimetal oxidases and oxygenases.Biochemical Society transactions · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Directed evolution of hydrocarbon-producing enzymes.Biotechnology for biofuels and bioproducts · 2025
    Review
  12. Review
  13. Heme Oxygenase-Like Metalloenzymes.Annual review of biochemistry · 2025
    Review
  14. Biochemical characterization of the self-sacrificing p-aminobenzoate synthase from Nitrosomonas europaea reveals key residues involved in selecting a Fe/Fe or Mn/Fe cofactor.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

28 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

8 authors.

Zhe RuiEnergy Biosciences Institute, Departments of Chemical and Biomolecular Engineering.
Xin LiEnergy Biosciences Institute, California Institute for Quantitative Biosciences, and.
Xuejun ZhuEnergy Biosciences Institute, Departments of Chemical and Biomolecular Engineering.
Joyce LiuEnergy Biosciences Institute, Bioengineering.
Bonnie DomiganEnergy Biosciences Institute, Departments of Chemical and Biomolecular Engineering.
Ian BarrChemistry, and Molecular and Cell Biology, University of California, Berkeley, CA 94720; and.
Jamie H D CateChemistry, and Molecular and Cell Biology, University of California, Berkeley, CA 94720; and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720.
Wenjun ZhangEnergy Biosciences Institute, Departments of Chemical and Biomolecular Engineering, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 wjzhang@berkeley.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aliphatic medium-chain 1-alkenes (MCAEs, ∼10 carbons) are "drop-in" compatible next-generation fuels and precursors to commodity chemicals. Mass production of MCAEs from renewable resources holds promise for mitigating dependence on fossil hydrocarbons. An MCAE, such as 1-undecene, is naturally produced by Pseudomonas as a semivolatile metabolite through an unknown biosynthetic pathway. We describe here the discovery of a single gene conserved in Pseudomonas responsible for 1-undecene biosynthesis. The encoded enzyme is able to convert medium-chain fatty acids (C10-C14) into their corresponding terminal olefins using an oxygen-activating, nonheme iron-dependent mechanism. Both biochemical and X-ray crystal structural analyses suggest an unusual mechanism of β-hydrogen abstraction during fatty acid substrate activation. Our discovery unveils previously unidentified chemistry in the nonheme Fe(II) enzyme family, provides an opportunity to explore the biology of 1-undecene in Pseudomonas, and paves the way for tailored bioconversion of renewable raw materials to MCAE-based biofuels and chemical commodities.

Indexed as

AlkenesMolecular StructureOxidoreductasesPseudomonasAlkenesOxidoreductasesbiofuelbiosynthesishydrocarboniron-dependent desaturase/decarboxylaseterminal olefin

Identifiers

PMID25489112
PMCPMC4280606

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.