Evidence map›Paper›PMID 30825403›Full record

ArticleAngewandte Chemie (International ed. in English)2019

A Peptide-Induced Self-Cleavage Reaction Initiates the Activation of Tyrosinase.

Ioannis Kampatsikas, Aleksandar Bijelic, Matthias Pretzler, Annette Rompel

Open access · hybridAbstract 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 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.3field-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

19 citing papers in PubMed, 45 citations in OpenAlex.

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  19. A Peptide-Induced Self-Cleavage Reaction Initiates the Activation of Tyrosinase.Angewandte Chemie (International ed. in English) · 2019
    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

4 authors at 1 institution in 1 country.

Ioannis KampatsikasUniversität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090, Wien, Austria.ORCID 0000-0001-7660-3121
Aleksandar BijelicUniversität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090, Wien, Austria.ORCID 0000-0002-8781-153X
Matthias PretzlerUniversität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090, Wien, Austria.ORCID 0000-0003-2637-6738
Annette RompelUniversität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090, Wien, Austria.ORCID 0000-0002-5919-0553
University of Vienna · AT

Funding

Austrian Science Fund (FWF) P29144Austrian Science Fund FWF P 29144
6 · The paper itself

Abstract

The conversion of inactive pro-polyphenol oxidases (pro-PPOs) into the active enzyme results from the proteolytic cleavage of its C-terminal domain. Herein, a peptide-mediated cleavage process that activates pro-MdPPO1 (Malus domestica) is reported. Mass spectrometry, mutagenesis studies, and X-ray crystal-structure analysis of pro-MdPPO1 (1.35 Å) and two separated C-terminal domains, one obtained upon self-cleavage of pro-MdPPO1 and the other one produced independently, were applied to study the observed self-cleavage. The sequence Lys 355-Val 370 located in the linker between the active and the C-terminal domain is indispensable for the self-cleavage. Partial introduction (Lys 352-Ala 360) of this peptide into the sequence of two other PPOs, MdPPO2 and aurone synthase (CgAUS1), triggered self-cleavage in the resulting mutants. This is the first experimental proof of a self-cleavage-inducing peptide in PPOs, unveiling a new mode of activation for this enzyme class that is independent of any external protease.

Indexed as

Catechol OxidaseCrystallography, X-RayDipeptidesMalusModels, MolecularMutationPeptide FragmentsPlant ProteinsProtein ConformationCatechol OxidaseDipeptideslysylvalinePeptide FragmentsPlant Proteinsactivating peptidescrystal structuresmaturation agentspolyphenol oxidasesself-cleaving peptides

Identifiers

PMID30825403
PMCPMC6563526
OpenAlexW2918493630

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.