Evidence map›Paper›PMID 29377663›Full record

ArticleACS chemical biology2018

Characterization of the Fast and Promiscuous Macrocyclase from Plant PCY1 Enables the Use of Simple Substrates.

Hannes Ludewig, Clarissa M Czekster, Emilia Oueis, Elizabeth S Munday, Mohammed Arshad, Silvia A Synowsky, Andrew F Bent, James H Naismith

Abstract read
In one paragraph

Article in ACS chemical biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

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  10. Biochemical characterization of a cyanobactin arginine-Chemical communications (Cambridge, England) · 2022
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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.

Hannes LudewigBiomedical Sciences Research Complex , University of St. Andrews , North Haugh , St. Andrews , KY16 9ST , United Kingdom.
Clarissa M CzeksterBiomedical Sciences Research Complex , University of St. Andrews , North Haugh , St. Andrews , KY16 9ST , United Kingdom.ORCID 0000-0002-7163-4057
Emilia OueisBiomedical Sciences Research Complex , University of St. Andrews , North Haugh , St. Andrews , KY16 9ST , United Kingdom.
Elizabeth S MundayEaStChem, School of Chemistry , University of St. Andrews , North Haugh , St. Andrews , KY16 9ST , United Kingdom.
Mohammed ArshadInstitute of Mechanical, Process and Energy Engineering , Heriot-Watt University , Edinburgh , EH14 4AS , United Kingdom.
Silvia A SynowskyBiomedical Sciences Research Complex , University of St. Andrews , North Haugh , St. Andrews , KY16 9ST , United Kingdom.
Andrew F BentBiomedical Sciences Research Complex , University of St. Andrews , North Haugh , St. Andrews , KY16 9ST , United Kingdom.
James H NaismithBiomedical Sciences Research Complex , University of St. Andrews , North Haugh , St. Andrews , KY16 9ST , United Kingdom.ORCID 0000-0001-6744-5061

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyclic ribosomally derived peptides possess diverse bioactivities and are currently of major interest in drug development. However, it can be chemically challenging to synthesize these molecules, hindering the diversification and testing of cyclic peptide leads. Enzymes used in vitro offer a solution to this; however peptide macrocyclization remains the bottleneck. PCY1, involved in the biosynthesis of plant orbitides, belongs to the class of prolyl oligopeptidases and natively displays substrate promiscuity. PCY1 is a promising candidate for in vitro utilization, but its substrates require an 11 to 16 residue C-terminal recognition tail. We have characterized PCY1 both kinetically and structurally with multiple substrate complexes revealing the molecular basis of recognition and catalysis. Using these insights, we have identified a three residue C-terminal extension that replaces the natural recognition tail permitting PCY1 to operate on synthetic substrates. We demonstrate that PCY1 can macrocyclize a variety of substrates with this short tail, including unnatural amino acids and nonamino acids, highlighting PCY1's potential in biocatalysis.

Indexed as

Drug DiscoveryBiocatalysisMacrocyclic CompoundsPeptides, CyclicPlantsProlyl OligopeptidasesSerine EndopeptidasesSubstrate SpecificityMacrocyclic CompoundsPeptides, CyclicProlyl OligopeptidasesSerine Endopeptidases

Identifiers

PMID29377663
PMCPMC5859912

What OpenQuestion holds

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Registered trials

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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.