Evidence map›Paper›PMID 31061132›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Structure-guided function discovery of an NRPS-like glycine betaine reductase for choline biosynthesis in fungi.

Yang Hai, Arthur M Huang, Yi Tang

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Genome Analysis ofJournal of fungi (Basel, Switzerland) · 2025
    Article
  7. Article
  8. Animal-Encoded Nonribosomal Pathway to Bursatellin Analogs.Journal of the American Chemical Society · 2025
    Article
  9. Article
  10. Article
  11. Genomic Sequencing and Functional Analysis of the Ex-Type Strain ofJournal of fungi (Basel, Switzerland) · 2024
    Article
  12. Article
  13. Article
  14. Review
  15. Enzymatic reactions towards aldehydes: An overview.Flavour and fragrance journal · 2023
    Review
  16. Article
  17. Review
  18. Genomic and Metabolomic Analyses of the Medicinal FungusJournal of fungi (Basel, Switzerland) · 2022
    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

3 authors at 1 institution in 1 country.

Yang HaiDepartment of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095.ORCID 0000-0002-2039-5367
Arthur M HuangDepartment of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095.
Yi TangDepartment of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095; yitang@ucla.edu.ORCID 0000-0003-1597-0141
University of California, Los Angeles · US

Funding

MIRA: Enzymology and Self-Resistance of Natural Product BiosynthesisR35GM118056 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Yi Tang · 2016 to 2026
$6.1M
NIGMS NIH HHS R35 GM118056
6 · The paper itself

Abstract

Nonribosomal peptide synthetases (NRPSs) and NRPS-like enzymes have diverse functions in primary and secondary metabolisms. By using a structure-guided approach, we uncovered the function of a NRPS-like enzyme with unusual domain architecture, catalyzing two sequential two-electron reductions of glycine betaine to choline. Structural analysis based on the homology model suggests cation-π interactions as the major substrate specificity determinant, which was verified using substrate analogs and inhibitors. Bioinformatic analysis indicates this NRPS-like glycine betaine reductase is highly conserved and widespread in kingdom fungi. Genetic knockout experiments confirmed its role in choline biosynthesis and maintaining glycine betaine homeostasis in fungi. Our findings demonstrate that the oxidative choline-glycine betaine degradation pathway can operate in a fully reversible fashion and provide insight in understanding fungal choline metabolism. The use of an NRPS-like enzyme for reductive choline formation is energetically efficient compared with known pathways. Our discovery also underscores the capabilities of the structure-guided approach in assigning functions of uncharacterized multidomain proteins, which can potentially aid functional discovery of new enzymes by genome mining.

Indexed as

Amino Acid OxidoreductasesBetaineCholineFungal ProteinsFungiGenomeGlycineMultienzyme ComplexesPeptide SynthasesSubstrate SpecificityAmino Acid OxidoreductasesBetainebetaine reductaseCholineFungal ProteinsGlycineglycine reductaseMultienzyme Complexesnon-ribosomal peptide synthasePeptide Synthasesbiosynthesischoline metabolismfungiglycine betaine reductaseNRPS-like

Identifiers

PMID31061132
PMCPMC6535007
OpenAlexW2916152433

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.