Evidence map›Paper›PMID 26699472›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

CO and CN- syntheses by [FeFe]-hydrogenase maturase HydG are catalytically differentiated events.

Adrien Pagnier, Lydie Martin, Laura Zeppieri, Yvain Nicolet, Juan C Fontecilla-Camps

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. 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
–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

25 citing papers in PubMed.

  1. Article
  2. Mineral-facilitated aqueous synthesis of hydrogen cyanide from prebiotically abundant amino acids for chemical evolution.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. In vitro maturation of fully active [FeFe]-hydrogenase in a defined system including the iron carrier NfuA.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. Chemical Antiquity in Metabolism.Accounts of chemical research · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. HydG, the "dangler" iron, and catalytic production of free CO and CNDalton transactions (Cambridge, England : 2003) · 2021
    Article
  12. Article
  13. Angewandte Chemie (International ed. in English) · 2021
    Article
  14. Article
  15. Article
  16. The binuclear cluster of [FeFe] hydrogenase is formed with sulfur donated by cysteine of an [Fe(Cys)(CO)Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  17. Photoinduced Electron Transfer in a Radical SAM Enzyme Generates anJournal of the American Chemical Society · 2019
    Article
  18. H-cluster assembly intermediates built on HydF by the radical SAM enzymes HydE and HydG.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2019
    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

5 authors.

Adrien PagnierMetalloproteins Unit, Institut de Biologie Structurale Commissariat à l'Energie Atomique et aux Energies Renouvelables-Centre National de la Recherche Scientifique-Université Grenoble Alpes, 38044 Grenoble Cedex 9, France.
Lydie MartinMetalloproteins Unit, Institut de Biologie Structurale Commissariat à l'Energie Atomique et aux Energies Renouvelables-Centre National de la Recherche Scientifique-Université Grenoble Alpes, 38044 Grenoble Cedex 9, France.
Laura ZeppieriMetalloproteins Unit, Institut de Biologie Structurale Commissariat à l'Energie Atomique et aux Energies Renouvelables-Centre National de la Recherche Scientifique-Université Grenoble Alpes, 38044 Grenoble Cedex 9, France.
Yvain NicoletMetalloproteins Unit, Institut de Biologie Structurale Commissariat à l'Energie Atomique et aux Energies Renouvelables-Centre National de la Recherche Scientifique-Université Grenoble Alpes, 38044 Grenoble Cedex 9, France yvain.nicolet@ibs.fr juan.fontecilla@ibs.fr.
Juan C Fontecilla-CampsMetalloproteins Unit, Institut de Biologie Structurale Commissariat à l'Energie Atomique et aux Energies Renouvelables-Centre National de la Recherche Scientifique-Université Grenoble Alpes, 38044 Grenoble Cedex 9, France yvain.nicolet@ibs.fr juan.fontecilla@ibs.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The synthesis and assembly of the active site [FeFe] unit of [FeFe]-hydrogenases require at least three maturases. The radical S-adenosyl-l-methionine HydG, the best characterized of these proteins, is responsible for the synthesis of the hydrogenase CO and CN(-) ligands from tyrosine-derived dehydroglycine (DHG). We speculated that CN(-) and the CO precursor (-):CO2H may be generated through an elimination reaction. We tested this hypothesis with both wild type and HydG variants defective in second iron-sulfur cluster coordination by measuring the in vitro production of CO, CN(-), and (-):CO2H-derived formate. We indeed observed formate production under these conditions. We conclude that HydG is a multifunctional enzyme that produces DHG, CN(-), and CO at three well-differentiated catalytic sites. We also speculate that homocysteine, cysteine, or a related ligand could be involved in Fe(CO)x(CN)y transfer to the HydF carrier/scaffold.

Indexed as

Carbon MonoxideCatalysisCatalytic DomainCyanidesCysteineDesulfovibrio desulfuricansHomocysteineHydrogenaseIron-Sulfur ProteinsLigandsProtein Structure, SecondaryS-AdenosylmethionineTyrosineCarbon MonoxideCyanidesCysteineHomocysteineHydrogenaseiron hydrogenaseIron-Sulfur ProteinsLigandsS-AdenosylmethionineTyrosineCO/CN synthesisFeFe hydrogenaseformateHydG maturaseradical SAM enzyme

Identifiers

PMID26699472
PMCPMC4711877

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.