Evidence map›Paper›PMID 32917937›Full record

ArticleCommunications biology2020

A flavin-dependent monooxygenase catalyzes the initial step in cyanogenic glycoside synthesis in ferns.

Sara Thodberg, Mette Sørensen, Matteo Bellucci, Christoph Crocoll, Amalie Kofoed Bendtsen, David Ralph Nelson, Mohammed Saddik Motawia, Birger Lindberg Møller, Elizabeth Heather Jakobsen Neilson

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2020. 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
4.4field-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

21 citing papers in PubMed, 41 citations in OpenAlex.

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  12. Reinventing metabolic pathways: Independent evolution of benzoxazinoids in flowering plants.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  18. A flavin-dependent monooxygenase produces nitrogenous tomato aroma volatiles using cysteine as a nitrogen source.Proceedings of the National Academy of Sciences of the United States of America · 2022
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  19. Cyanogenesis in theGenes · 2022
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  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

9 authors at 2 institutions in 2 countries.

Sara Thodberg *Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-9332-6071
Mette Sørensen *Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Copenhagen, Denmark.ORCID http://orcid.org/0000-0001-9787-8386
Matteo BellucciNovo Nordisk Foundation Center for Protein Research, Protein Production and Characterization Platform, University of Copenhagen, Blegdamsvej 3, 2200, Copenhagen N, Denmark.ORCID http://orcid.org/0000-0002-1392-5091
Christoph CrocollSection for Plant Molecular Biology, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Copenhagen, Denmark.ORCID http://orcid.org/0000-0003-2754-3518
Amalie Kofoed BendtsenPlant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-3996-6529
David Ralph NelsonDepartment of Microbiology, Immunology and Biochemistry, University of Tennessee, 858 Madison Ave. Suite G01, Memphis, TN, 38163, USA.ORCID http://orcid.org/0000-0003-0583-5421
Mohammed Saddik MotawiaPlant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Copenhagen, Denmark.ORCID http://orcid.org/0000-0001-5582-9463
Birger Lindberg MøllerPlant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-3252-3119
Elizabeth Heather Jakobsen NeilsonPlant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Copenhagen, Denmark. en@plen.ku.dk.
University of Copenhagen · DKUniversity of Tennessee at Knoxville · US

Funding

European Research Council ERC-2012-ADG_20120314
6 · The paper itself

Abstract

Cyanogenic glycosides form part of a binary plant defense system that, upon catabolism, detonates a toxic hydrogen cyanide bomb. In seed plants, the initial step of cyanogenic glycoside biosynthesis-the conversion of an amino acid to the corresponding aldoxime-is catalyzed by a cytochrome P450 from the CYP79 family. An evolutionary conundrum arises, as no CYP79s have been identified in ferns, despite cyanogenic glycoside occurrence in several fern species. Here, we report that a flavin-dependent monooxygenase (fern oxime synthase; FOS1), catalyzes the first step of cyanogenic glycoside biosynthesis in two fern species (Phlebodium aureum and Pteridium aquilinum), demonstrating convergent evolution of biosynthesis across the plant kingdom. The FOS1 sequence from the two species is near identical (98%), despite diversifying 140 MYA. Recombinant FOS1 was isolated as a catalytic active dimer, and in planta, catalyzes formation of an N-hydroxylated primary amino acid; a class of metabolite not previously observed in plants.

Indexed as

Amino Acid SequenceCatalysisCytochrome P-450 Enzyme SystemFernsFlavinsGene Expression Regulation, PlantGlycosidesKineticsOximesOxygenasesPhylogenyPlant ProteinsSequence Alignmentacetaldehyde oximecyanogenic glycosidesCytochrome P-450 Enzyme Systemdimethylaniline monooxygenase (N-oxide forming)FlavinsGlycosidesOximesOxygenasesPlant Proteins

Identifiers

PMID32917937
PMCPMC7486406
OpenAlexW3086921336

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.