Compound Heterozygosity for Late-Onset Cardiomyopathy-Causative ALPK3 Coding Variant and Novel Intronic Variant Cause Infantile Hypertrophic Cardiomyopathy.
ALPK3
Cardiomyopathy
DCM
HCM
Splice site mutation
Journal
Journal of cardiovascular translational research
ISSN: 1937-5395
Titre abrégé: J Cardiovasc Transl Res
Pays: United States
ID NLM: 101468585
Informations de publication
Date de publication:
16 Nov 2023
16 Nov 2023
Historique:
received:
10
05
2023
accepted:
03
11
2023
medline:
17
11
2023
pubmed:
17
11
2023
entrez:
16
11
2023
Statut:
aheadofprint
Résumé
Hypertrophic and dilated cardiomyopathy (HCM, DCM) are leading causes of cardiovascular morbidity and mortality in children. The pseudokinase alpha-protein kinase 3 (ALPK3) plays an essential role in sarcomere organization and cardiomyocyte differentiation. ALPK3 coding mutations are causative of recessively inherited pediatric-onset DCM and HCM with variable expression of facial dysmorphism and skeletal abnormalities and implicated in dominantly inherited adult-onset cardiomyopathy. We now report two variants in ALPK3-a coding variant and a novel intronic variant affecting splicing. We demonstrate that compound heterozygosity for both variants is highly suggestive to be causative of infantile-onset HCM with webbed neck, and heterozygosity for the coding variant presents with adult-onset HCM. Our data validate partial penetrance of heterozygous loss-of-function ALPK3 mutations in late-onset hypertrophic cardiomyopathy and expand the genotypic spectrum of autosomal recessive ALPK3-related cardiac disease with Noonan-like features.
Identifiants
pubmed: 37973666
doi: 10.1007/s12265-023-10461-y
pii: 10.1007/s12265-023-10461-y
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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