Evidence map›Paper›PMID 36259362›Full record

ArticleChembiochem : a European journal of chemical biology2023

Enzymatic Late-Stage Halogenation of Peptides.

Christian Schnepel, Ann-Christin Moritzer, Simon Gäfe, Nicolai Montua, Hannah Minges, Anke Nieß, Hartmut H Niemann, Norbert Sewald

Open access · bronzeAbstract read
In one paragraph

Article in Chembiochem : a European journal of chemical biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Peptidic Tryptophan Halogenation by a Promiscuous Flavin-Dependent Enzyme.Angewandte Chemie (International ed. in English) · 2025
    Article
  6. Article
  7. Review
  8. 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
  9. Article
  10. Promiscuous Enzymes for Residue-Specific Peptide and Protein Late-Stage Functionalization.Chembiochem : a European journal of chemical biology · 2023
    Review
  11. Article
  12. Article
  13. Enzymatic Late-Stage Halogenation of Peptides.Chembiochem : a European journal of chemical biology · 2023
    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

8 authors at 1 institution in 2 countries.

Christian SchnepelOrganische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.ORCID 0000-0002-4331-2675
Ann-Christin MoritzerStrukturbiochemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.ORCID 0000-0002-7647-9594
Simon GäfeStrukturbiochemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.
Nicolai MontuaOrganische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.
Hannah MingesOrganische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.ORCID 0000-0003-0615-3713
Anke NießOrganische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.
Hartmut H NiemannStrukturbiochemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.
Norbert SewaldOrganische und Bioorganische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.ORCID 0000-0002-0309-2655
Bielefeld University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The late-stage site-selective derivatisation of peptides has many potential applications in structure-activity relationship studies and postsynthetic modification or conjugation of bioactive compounds. The development of orthogonal methods for C-H functionalisation is crucial for such peptide derivatisation. Among them, biocatalytic methods are increasingly attracting attention. Tryptophan halogenases emerged as valuable catalysts to functionalise tryptophan (Trp), while direct enzyme-catalysed halogenation of synthetic peptides is yet unprecedented. Here, it is reported that the Trp 6-halogenase Thal accepts a wide range of amides and peptides containing a Trp moiety. Increasing the sequence length and reaction optimisation made bromination of pentapeptides feasible with good turnovers and a broad sequence scope, while regioselectivity turned out to be sequence dependent. Comparison of X-ray single crystal structures of Thal in complex with d-Trp and a dipeptide revealed a significantly altered binding mode for the peptide. The viability of this bioorthogonal approach was exemplified by halogenation of a cyclic RGD peptide.

Indexed as

HalogenationTryptophanCatalysisPeptidesStructure-Activity RelationshipPeptidesTryptophanBiocatalysisbioconjugationlate-stage C−H activationRGD peptidestryptophan halogenase

Identifiers

PMID36259362
PMCPMC10099709
OpenAlexW4306777802

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.