Evidence map›Paper›PMID 29784781›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

C-4 sterol demethylation enzymes distinguish bacterial and eukaryotic sterol synthesis.

Alysha K Lee, Amy B Banta, Jeremy H Wei, David J Kiemle, Ju Feng, José-Luis Giner, Paula V Welander

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
5.7field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. The evolutionary history and modern diversity of triterpenoid cyclases.bioRxiv : the preprint server for biology · 2025
    Article
  6. Article
  7. Bacterial estrogenesis without oxygen: Wood-Ljungdahl pathway likely contributed to the emergence of estrogens in the biosphere.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Lipid Trafficking in Diverse Bacteria.Accounts of chemical research · 2025
    Review
  9. Article
  10. Article
  11. Molecular Characterization of Sterol C4-Methyl Oxidase inInternational journal of molecular sciences · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Molecular Response ofBiology · 2022
    Article
  18. Article
  19. Review
  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

7 authors at 2 institutions in 1 country.

Alysha K LeeDepartment of Earth System Science, Stanford University, Stanford, CA 94305.
Amy B BantaDepartment of Earth System Science, Stanford University, Stanford, CA 94305.ORCID 0000-0002-1843-5059
Jeremy H WeiDepartment of Earth System Science, Stanford University, Stanford, CA 94305.
David J KiemleDepartment of Chemistry, State University of New York-Environmental Science and Forestry, Syracuse, NY 13210.
Ju FengDepartment of Chemistry, State University of New York-Environmental Science and Forestry, Syracuse, NY 13210.
José-Luis GinerDepartment of Chemistry, State University of New York-Environmental Science and Forestry, Syracuse, NY 13210 jlginer@syr.edu welander@stanford.edu.
Paula V WelanderDepartment of Earth System Science, Stanford University, Stanford, CA 94305; jlginer@syr.edu welander@stanford.edu.
Stanford University · USState University of New York · US

Funding

A 800 MHz Nuclear Magnetic Resonance Spectrometer in Support of Life Science ReseS10OD012254 · OD · UPSTATE MEDICAL UNIVERSITY · PI WILKENS, STEPHAN · 2013 to 2013
$2.0M
NIH HHS S10 OD012254
6 · The paper itself

Abstract

Sterols are essential eukaryotic lipids that are required for a variety of physiological roles. The diagenetic products of sterol lipids, sterane hydrocarbons, are preserved in ancient sedimentary rocks and are utilized as geological biomarkers, indicating the presence of both eukaryotes and oxic environments throughout Earth's history. However, a few bacterial species are also known to produce sterols, bringing into question the significance of bacterial sterol synthesis for our interpretation of sterane biomarkers. Recent studies suggest that bacterial sterol synthesis may be distinct from what is observed in eukaryotes. In particular, phylogenomic analyses of sterol-producing bacteria have failed to identify homologs of several key eukaryotic sterol synthesis enzymes, most notably those required for demethylation at the C-4 position. In this study, we identified two genes of previously unknown function in the aerobic methanotrophic γ-Proteobacterium

Indexed as

DemethylationAnimalsBacterial ProteinsComputational BiologyEscherichia coliEukaryotic CellsMethylococcus capsulatusRecombinant ProteinsSterolsTriterpenesBacterial ProteinsRecombinant ProteinsSterolsTriterpenesbiomarkerscyclic triterpenoidsMethylococcus capsulatussterols

Identifiers

PMID29784781
PMCPMC6003346
OpenAlexW2804227612

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.