Evidence map›Paper›PMID 32662921›Full record

ArticleAngewandte Chemie (International ed. in English)2020

In Vitro Reconstitution Reveals a Central Role for the N-Oxygenase PvfB in (Dihydro)pyrazine-N-oxide and Valdiazen Biosynthesis.

Gina L Morgan, Bo Li

Open access · greenAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

16 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. ACS chemical biology · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Engineering microbiology · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. 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

2 authors at 1 institution in 1 country.

Gina L MorganDepartment of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
Bo LiDepartment of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.ORCID 0000-0002-8019-8891
University of North Carolina at Chapel Hill · US

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Deborah F. Tate · 1985 to 2026
$201.5M
Mining Genomes for Synergistic AntibioticsDP2HD094657 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI LI, BO · 2017 to 2017
$2.3M
NCI NIH HHS P30 CA016086NICHD NIH HHS DP2 HD094657
6 · The paper itself

Abstract

The Pseudomonas virulence factor (pvf) operon is essential for the biosynthesis of two very different natural product scaffolds: the (dihydro)pyrazine-N-oxides and the diazeniumdiolate, valdiazen. PvfB is a member of the non-heme diiron N-oxygenase enzyme family that commonly convert anilines to their nitroaromatic counterparts. In contrast, we show that PvfB catalyzes N-oxygenation of the α-amine of valine, first to the hydroxylamine and then the nitroso, while linked to the carrier protein of PvfC. PvfB modification of PvfC-tethered valine was observed directly by protein NMR spectroscopy, establishing the intermediacy of the hydroxylamine. This work reveals a central role for PvfB in the biosynthesis of (dihydro)pyrazine-N-oxides and valdiazen.

Indexed as

Azo CompoundsBiocatalysisMolecular StructureOxidesOxygenasesPyrazinesAzo CompoundsdiazeniumdiolateOxidesOxygenasesPyrazinesbiosynthesismetalloenzymesnatural productsnitrogen heterocyclesprotein modifications

Identifiers

PMID32662921
PMCPMC7721988
OpenAlexW3042449368

What OpenQuestion holds

Textmetadata
LicenceTDM
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.