Evidence map›Paper›PMID 30963655›Full record

ArticleAngewandte Chemie (International ed. in English)2019

Biosynthesis of l-4-Chlorokynurenine, an Antidepressant Prodrug and a Non-Proteinogenic Amino Acid Found in Lipopeptide Antibiotics.

Hanna Luhavaya, Renata Sigrist, Jonathan R Chekan, Shaun M K McKinnie, Bradley S Moore

Open access · greenAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.4field-weighted citation impact, top 13% 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

24 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Peptide halogenation biochemistry: interfacing pharmaceutical deliverables with chemical innovation.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2025
    Review
  10. Article
  11. Review
  12. Modern Trends in Natural Antibiotic Discovery.Life (Basel, Switzerland) · 2023
    Review
  13. Review
  14. Review
  15. Discovery of unusual dimeric piperazyl cyclopeptides encoded by aProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

5 authors at 1 institution in 2 countries.

Hanna LuhavayaCenter for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, 92093, USA.ORCID 0000-0002-6346-4959
Renata SigristCenter for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, 92093, USA.ORCID 0000-0002-9342-7470
Jonathan R ChekanCenter for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, 92093, USA.ORCID 0000-0003-4651-0594
Shaun M K McKinnieCenter for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, 92093, USA.ORCID 0000-0001-6776-6455
Bradley S MooreCenter for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, 92093, USA.ORCID 0000-0002-4652-1253
Scripps Institution of Oceanography · US

Funding

Natural Product Genome MiningR01GM085770 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI JENSEN, PAUL R, MOORE, BRADLEY S · 2009 to 2024
$5.8M
FAPESP 2016/25735-1Life Science Research FoundationNIGMS NIH HHS R01 GM085770NIH HHS R01-GM085770NSERC postdoctoral fellowship
6 · The paper itself

Abstract

l-4-Chlorokynurenine (l-4-Cl-Kyn) is a neuropharmaceutical drug candidate that is in development for the treatment of major depressive disorder. Recently, this amino acid was naturally found as a residue in the lipopeptide antibiotic taromycin. Herein, we report the unprecedented conversion of l-tryptophan into l-4-Cl-Kyn catalyzed by four enzymes in the taromycin biosynthetic pathway from the marine bacterium Saccharomonospora sp. CNQ-490. We used genetic, biochemical, structural, and analytical techniques to establish l-4-Cl-Kyn biosynthesis, which is initiated by the flavin-dependent tryptophan chlorinase Tar14 and its flavin reductase partner Tar15. This work revealed the first tryptophan 2,3-dioxygenase (Tar13) and kynurenine formamidase (Tar16) enzymes that are selective for chlorinated substrates. The substrate scope of Tar13, Tar14, and Tar16 was examined and revealed intriguing promiscuity, thereby opening doors for the targeted engineering of these enzymes as useful biocatalysts.

Indexed as

Amino AcidsAnti-Bacterial AgentsAntidepressive AgentsArylformamidaseCrystallography, X-RayKynurenineLipopeptidesModels, MolecularMolecular StructureProdrugsTryptophan Oxygenase4-chlorokynurenineAmino AcidsAnti-Bacterial AgentsAntidepressive AgentsArylformamidaseKynurenineLipopeptidesProdrugsTryptophan Oxygenasebiocatalysisbiosynthesischlorokynureninehalogenationnatural products

Identifiers

PMID30963655
PMCPMC6555645
OpenAlexW2939614685

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.