Evidence map›Paper›PMID 33108057›Full record

ReviewChembiochem : a European journal of chemical biology2021

Similar but Still Different: Which Amino Acid Residues Are Responsible for Varying Activities in Type-III Copper Enzymes?

Ioannis Kampatsikas, Annette Rompel

Open access · hybridAbstract readReview
In one paragraph

Review in Chembiochem : a European journal of chemical biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

22 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
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  3. Structural insights intoInorganic chemistry frontiers · 2026
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  9. The small molecule ML233 is a direct inhibitor of tyrosinase function.bioRxiv : the preprint server for biology · 2025
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  17. Review
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  19. Evidence for H-bonding interactions to the μ-ηChemical communications (Cambridge, England) · 2022
    Article
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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

2 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
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) P25217Austrian Science Fund (FWF) P29144Austrian Science Fund (FWF) P32326Austrian Science Fund FWF P 32326University of Vienna
6 · The paper itself

Abstract

Type-III copper enzymes like polyphenol oxidases (PPOs) are ubiquitous among organisms and play a significant role in the formation of pigments. PPOs comprise different enzyme groups, including tyrosinases (TYRs) and catechol oxidases (COs). TYRs catalyze the o-hydroxylation of monophenols and the oxidation of o-diphenols to the corresponding o-quinones (EC 1.14.18.1). In contrast, COs only catalyze the oxidation of o-diphenols to the corresponding o-quinones (EC 1.10.3.1). To date (August 2020), 102 PDB entries encompassing 18 different proteins from 16 organisms and several mutants have been reported, identifying key residues for tyrosinase activity. The structural similarity between TYRs and COs, especially within and around the active center, complicates the elucidation of their modes of action on a structural basis. However, mutagenesis studies illuminate residues that influence the two activities and show that crystallography on its own cannot elucidate the enzymatic activity mode. Several amino acid residues around the dicopper active center have been proposed to play an essential role in the two different activities. Herein, we critically review the role of all residues identified so far that putatively affect the two activities of PPOs.

Indexed as

BiocatalysisCatechol OxidaseMonophenol MonooxygenaseMutagenesis, Site-DirectedOxidation-ReductionPhenolsPlant ProteinsSubstrate SpecificityCatechol OxidaseMonophenol MonooxygenasePhenolsPlant Proteinsactivity controllersgatekeeper residueoxidasesphenolase activitytyrosinaseswaterkeeper residue

Identifiers

PMID33108057
PMCPMC8049008
OpenAlexW3094480646

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.