Evidence map›Paper›PMID 42362369›Full record

ArticleJournal of medical genetics2026

Identification of biallelic loss-of-function

Erik Hertstein, Miriam Bertrand, Johannes Kopp, Henrike Lisa Sczakiel, Oliver Küchler, Nicolai von Kügelgen, Björn Fischer-Zirnsak, Gabriele Hildebrand, Jonas Leubner, Denise Horn and 5 more

Abstract readCase Reports
In one paragraph

Article in Journal of medical genetics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

15 authors.

Erik HertsteinInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0009-0000-3728-552X
Miriam BertrandInstitute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany.ORCID http://orcid.org/0000-0002-6960-8837
Johannes KoppInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0002-0391-1497
Henrike Lisa SczakielInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0003-3836-163X
Oliver KüchlerInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0009-0008-2628-2890
Nicolai von KügelgenInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0001-8116-9032
Björn Fischer-ZirnsakInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.ORCID http://orcid.org/0000-0002-1075-7571
Gabriele HildebrandInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Jonas LeubnerDepartment of Pediatric Neurology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Denise HornInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Stefan MundlosInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
Tobias B HaackInstitute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany.ORCID http://orcid.org/0000-0001-6033-4836
Angela KaindlGerman Center for Child and Adolescent Health (DZKJ), Berlin, Germany.
Christoph G KorenkeDepartment of Neuropediatrics, Children's Hospital, Klinikum Oldenburg, Oldenburg, Germany.
Felix BoschannInstitute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany felix.boschann@charite.de.ORCID http://orcid.org/0000-0001-9410-9290

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeurodevelopmental disorders are one of the most prevalent reasons for genetic testing in childhood. Despite the identification of over 1950 associated genes, many proposed candidate genes lack convincing gene-disease validity. The gene

methodsExome and trio genome sequencing were performed in two unrelated families as part of larger cohorts. Segregation analysis, RNA sequencing and immunoblots were performed to further examine the pathogenicity of detected

resultsWe report three individuals from two unrelated families who presented with intellectual disability, behavioural abnormalities, strabismus, generalised muscular hypotonia, dysmorphic facial features and epilepsy. Exome and genome sequencing identified two different homozygous rare

conclusionOur data suggest PREP deficiency as the underlying cause of a syndromic neurodevelopmental disorder.

Indexed as

Genetic Predisposition to DiseaseIntellectual DisabilityLoss of Function MutationNeurodevelopmental DisordersSerine EndopeptidasesAdolescentAllelesFemaleHomozygoteHumansMalePedigreeProlyl OligopeptidasesPREPL protein, humanProlyl OligopeptidasesSerine EndopeptidasesEpilepsyGenomicsMental DisordersRNA-SeqRNA Splicing

Identifiers

PMID42362369
PMCPMC13539837

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.