Evidence map›Paper›PMID 35995990›Full record

ArticleScientific reports2022

New putative phenol oxidase in ascidian blood cells.

M A Daugavet, M I Dobrynina, T G Shaposhnikova, A I Solovyeva, A G Mittenberg, S V Shabelnikov, I Yu Babkina, A V Grinchenko, D V Ilyaskina, O I Podgornaya

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. 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

10 authors at 5 institutions in 2 countries.

M A DaugavetInstitute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia. ka6tanka@yandex.ru.
M I DobryninaInstitute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia.
T G ShaposhnikovaSaint-Petersburg State University, St. Petersburg, Russia.
A I SolovyevaInstitute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia.
A G MittenbergInstitute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia.
S V ShabelnikovInstitute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia.
I Yu BabkinaSaint-Petersburg State University, St. Petersburg, Russia.
A V GrinchenkoA.V. Zhirmunsky National Scientific Center of Marine Biology, Vladivostok, Russia.
D V IlyaskinaA.V. Zhirmunsky National Scientific Center of Marine Biology, Vladivostok, Russia.
O I PodgornayaInstitute of Cytology of Russian Academy of Sciences, St. Petersburg, Russia.
Institute of Cytology · RUSt Petersburg University · RUA.V. Zhirmunsky National Scientific Center of Marine Biology Far Eastern Branch of the Russian Academy of Sciences · RUVrije Universiteit Amsterdam · NLZoological Institute · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The phenol oxidase system is ancient and ubiquitously distributed in all living organisms. In various groups it serves for the biosynthesis of pigments and neurotransmitters (dopamine), defence reactions and tissue hardening. Ascidians belong to subphylum Tunicata, which is considered the closest living relative to Vertebrates. Two phenol oxidases previously described for ascidians are vertebrate-like and arthropod-like phenol oxidases. In our present study, we described a new ascidian protein, Tuphoxin, with putative phenol oxidase function, which bears no sequence similarity with two enzymes described previously. The closest related proteins to Tuphoxin are mollusc haemocyanins. Unlike haemocyanins, which are oxygen transporting plasma proteins, Tuphoxin is synthesised in ascidian blood cells and secreted in the extracellular matrix of the tunic-ascidian outer coverings. Single mature transcript coding for this phenol oxidase can give several protein products of different sizes. Thus limited proteolysis of the initial protein is suggested. A unique feature of Tuphoxins and their homologues among Tunicata is the presence of thrombospondin first type repeats (TSP1) domain in their sequence which is supposed to provide interaction with extracellular matrix. The finding of TSP1 in the structure of phenol oxidases is new and we consider this to be an innovation of Tunicata evolutionary lineage.

Indexed as

UrochordataAnimalsBlood CellsHemocyaninsMonophenol MonooxygenasePhenolsVertebratesHemocyaninsMonophenol MonooxygenasePhenols

Identifiers

PMID35995990
PMCPMC9395347
OpenAlexW4292623930

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.