Evidence map›Paper›PMID 18263585›Full record

ArticleThe Journal of biological chemistry2008

Mutation G827R in matriptase causing autosomal recessive ichthyosis with hypotrichosis yields an inactive protease.

Antoine Désilets, François Béliveau, Guillaume Vandal, François-Olivier McDuff, Pierre Lavigne, Richard Leduc

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

24 citing papers in PubMed, 51 citations in OpenAlex.

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  19. Membrane-anchored serine proteases in health and disease.Progress in molecular biology and translational science · 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 1 institution in 1 country.

Antoine DésiletsDepartment of Pharmacology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada.
François Béliveau
Guillaume Vandal
François-Olivier McDuff
Pierre Lavigne
Richard Leduc
Université de Sherbrooke · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Matriptase is a member of the novel family of type II transmembrane serine proteases. It was recently shown that a rare genetic disorder, autosomal recessive ichthyosis with hypotrichosis, is caused by a mutation in the coding region of matriptase. However, the biochemical and functional consequences of the G827R mutation in the catalytic domain of the enzyme have not been reported. Here we expressed the G827R-matriptase mutant in bacterial cells and found that it did not undergo autocatalytic cleavage from its zymogen to its active form as did the wild-type matriptase. Enzymatic activity measurements showed that the G827R mutant was catalytically inactive. When expressed in HEK293 cells, G827R-matriptase remained inactive but was shed as a soluble form, suggesting that another protease cleaved the full-length mature form of matriptase. Molecular modeling based on the crystal structure of matriptase showed that replacing Gly(827) by Arg blocks access to the binding/catalytic cleft of the enzyme thereby preventing autocatalysis of the zymogen form. Our study, thus, provides direct evidence that the G827R mutation in patients with autosomal recessive ichthyosis with hypotrichosis leads to the expression of an inactive protease.

Indexed as

MutationArginineCell MembraneDNA Mutational AnalysisGenes, RecessiveGlycineHumansHypotrichosisIchthyosisKineticsModels, BiologicalPeptide HydrolasesProtein ConformationProtein Structure, SecondarySerine EndopeptidasesArginineGlycinematriptasePeptide HydrolasesSerine Endopeptidases

Identifiers

PMID18263585
PMCPMC2447636
OpenAlexW2003621291

What OpenQuestion holds

Textmetadata
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.