Evidence map›Paper›PMID 26807714›Full record

ArticleNature chemical biology2016

A pyridoxal phosphate-dependent enzyme that oxidizes an unactivated carbon-carbon bond.

Yi-Ling Du, Rahul Singh, Lona M Alkhalaf, Eugene Kuatsjah, Hai-Yan He, Lindsay D Eltis, Katherine S Ryan

Abstract read
PubMed Publisher
In one paragraph

Article in Nature chemical biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
7.6field-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

18 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Nature-Inspired Radical Pyridoxal-Mediated C-C Bond Formation.Journal of the American Chemical Society · 2024
    Article
  7. Review
  8. A shared mechanistic pathway for pyridoxal phosphate-dependent arginine oxidases.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  9. Article
  10. Review
  11. Pyridoxal-5'-phosphate-dependent bifunctional enzyme catalyzed biosynthesis of indolizidine alkaloids in fungi.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Pyridoxal-5'-phosphate as an oxygenase cofactor: Discovery of a carboxamide-forming, α-amino acid monooxygenase-decarboxylase.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  16. Article
  17. Review
  18. Enzyme classification using complex dynamic hemithioacetal systems.Chemical communications (Cambridge, England) · 2016
    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 1 institution in 1 country.

Yi-Ling DuDepartment of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada.
Rahul SinghDepartment of Microbiology and Immunology, The University of British Columbia, Vancouver, British Columbia, Canada.
Lona M AlkhalafDepartment of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada.
Eugene KuatsjahGenome Science and Technology Program, The University of British Columbia, Vancouver, British Columbia, Canada.
Hai-Yan HeDepartment of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada.
Lindsay D EltisDepartment of Microbiology and Immunology, The University of British Columbia, Vancouver, British Columbia, Canada.
Katherine S RyanDepartment of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada.
University of British Columbia · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Pyridoxal 5'-phosphate (PLP)-dependent enzymes have wide catalytic versatility but are rarely known for their ability to react with oxygen to catalyze challenging reactions. Here, using in vitro reconstitution and kinetic analysis, we report that the indolmycin biosynthetic enzyme Ind4, from Streptomyces griseus ATCC 12648, is an unprecedented O2- and PLP-dependent enzyme that carries out a four-electron oxidation of L-arginine, including oxidation of an unactivated carbon-carbon (C-C) bond. We show that the conjugated product of this reaction, which is susceptible to nonenzymatic deamination, is efficiently intercepted and stereospecifically reduced by the partner enzyme Ind5 to give D-4,5-dehydroarginine. Thus, Ind4 couples the redox potential of O2 with the ability of PLP to stabilize anions to efficiently oxidize an unactivated C-C bond, with the subsequent stereochemical inversion by Ind5 preventing off-pathway reactions. Altogether, these results expand our knowledge of the catalytic versatility of PLP-dependent enzymes and enrich the toolbox for oxidative biocatalysis.

Indexed as

ArginineCarbonCatalysisDeaminationKineticsMolecular ConformationOxidation-ReductionOxidoreductases Acting on CH-CH Group DonorsPyridoxal PhosphateStereoisomerismStreptomyces griseusArginineCarbonOxidoreductases Acting on CH-CH Group DonorsPyridoxal Phosphate

Identifiers

PMID26807714
OpenAlexW2265967891

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.