Evidence map›Paper›PMID 28915025›Full record

ArticleBiochemistry2017

Structural Evidence for the Dopamine-First Mechanism of Norcoclaurine Synthase.

Benjamin R Lichman, Altin Sula, Thomas Pesnot, Helen C Hailes, John M Ward, Nicholas H Keep

Open access · hybridAbstract read
In one paragraph

Article in Biochemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
  2. Article
  3. Understanding the Enzyme (Journal of chemical information and modeling · 2024
    Article
  4. Article
  5. Rational Engineering of (Molecules (Basel, Switzerland) · 2023
    Article
  6. The Quantum Chemical Cluster Approach in Biocatalysis.Accounts of chemical research · 2023
    Review
  7. Article
  8. Article
  9. Elucidation of the 1-phenethylisoquinoline pathway from an endemic coniferProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Green Routes for the Production of Enantiopure Benzylisoquinoline Alkaloids.International journal of molecular sciences · 2017
    Review
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

6 authors at 3 institutions in 1 country.

Benjamin R LichmanDepartment of Biochemical Engineering, University College London , Gower Street, London WC1E 6BT, U.K.
Altin SulaInstitute for Structural and Molecular Biology, Department of Biological Sciences, Birkbeck, University of London , Malet Street, London WC1E 7HX, U.K.
Thomas PesnotDepartment of Chemistry, University College London , Christopher Ingold Building, London WC1H 0AJ, U.K.
Helen C HailesDepartment of Chemistry, University College London , Christopher Ingold Building, London WC1H 0AJ, U.K.
John M WardDepartment of Biochemical Engineering, University College London , Gower Street, London WC1E 6BT, U.K.
Nicholas H KeepInstitute for Structural and Molecular Biology, Department of Biological Sciences, Birkbeck, University of London , Malet Street, London WC1E 7HX, U.K.ORCID 0000-0002-5042-1837
Birkbeck, University of London · GBNorwich Research Park · GBUniversity College London · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Norcoclaurine synthase (NCS) is a Pictet-Spenglerase that catalyzes the first key step in plant benzylisoquinoline alkaloid metabolism, a compound family that includes bioactive natural products such as morphine. The enzyme has also shown great potential as a biocatalyst for the formation of chiral isoquinolines. Here we present new high-resolution X-ray crystallography data describing Thalictrum flavum NCS bound to a mechanism-inspired ligand. The structure supports two key features of the NCS "dopamine-first" mechanism: the binding of dopamine catechol to Lys-122 and the position of the carbonyl substrate binding site at the active site entrance. The catalytically vital residue Glu-110 occupies a previously unobserved ligand-bound conformation that may be catalytically significant. The potential roles of inhibitory binding and alternative amino acid conformations in the mechanism have also been revealed. This work significantly advances our understanding of the NCS mechanism and will aid future efforts to engineer the substrate scope and catalytic properties of this useful biocatalyst.

Indexed as

Carbon-Nitrogen LigasesCatalytic DomainCrystallography, X-RayDopamineModels, MolecularThalictrumCarbon-Nitrogen LigasesDopaminenorcoclaurine synthase

Identifiers

PMID28915025
PMCPMC5637010
OpenAlexW2755212015

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.