Evidence map›Paper›PMID 19439101›Full record

ArticleBMC molecular biology2009

A trypsin-like protease with apparent dual function in early Lepeophtheirus salmonis (Krøyer) development.

Rasmus Skern-Mauritzen, Petter Frost, Sussie Dalvin, Bjørn Olav Kvamme, Ingunn Sommerset, Frank Nilsen

Open access · hybridAbstract read
In one paragraph

Article in BMC molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.9field-weighted citation impact, top 11% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

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  11. Observing copepods through a genomic lens.Frontiers in zoology · 2011
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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

6 authors at 2 institutions in 1 country.

Rasmus Skern-MauritzenDepartment of Population Genetics and Ecology, Institute of Marine Research, Bergen 5817, Norway. rasmus@imr.no
Petter Frost
Sussie Dalvin
Bjørn Olav Kvamme
Ingunn Sommerset
Frank Nilsen
Norwegian Institute of Marine Research · NOBerGenBio (Norway) · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTrypsin-like serine proteases are involved in a large number of processes including digestive degradation, regulation of developmental processes, yolk degradation and yolk degradome activation. Trypsin like peptidases considered to be involved in digestion have been characterized in Lepeophtheirus salmonis. During these studies a trypsin-like peptidase which differed in a number of traits were identified.

resultsAn intronless trypsin-like serine peptidase (LsTryp10) from L., salmonis was identified and characterized. LsTryp10 mRNA is evenly distributed in the ovaries and oocytes, but is located along the ova periphery. LsTryp10 protein is deposited in the oocytes and all embryonic cells. LsTryp10 mRNA translation and concurrent degradation after fertilization was found in the embryos demonstrating that LsTryp10 protein is produced both by the embryo and maternally. The results furthermore indicate that LsTryp10 protein of maternal origin has a distribution pattern different to that of embryonic origin.

conclusionBased on present data and previous studies of peptidases in oocytes and embryos, we hypothesize that maternally deposited LsTryp10 protein is involved in regulation of the yolk degradome. The function of LsTryp10 produced by the embryonic cells remains unknown. To our knowledge a similar expression pattern has not previously been reported for any protease.

Indexed as

AnimalsCopepodaFemaleGene Expression Regulation, DevelopmentalMaleOocytesOvaryPhylogenySerine EndopeptidasesSpecies SpecificitySerine Endopeptidasestrypsin-like serine protease

Identifiers

PMID19439101
PMCPMC2689223
OpenAlexW1966284507

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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.