Article ; Online: A SPRY1 domain cardiac ryanodine receptor variant associated with short-coupled torsade de pointes.
2021 Volume 11, Issue 1, Page(s) 5243
Abstract: Idiopathic ventricular fibrillation (IVF) causes sudden death in young adult patients without structural or ischemic heart disease. Most IVF cases are sporadic and some patients present with short-coupled torsade de pointes, the genetics of which are ... ...
Abstract | Idiopathic ventricular fibrillation (IVF) causes sudden death in young adult patients without structural or ischemic heart disease. Most IVF cases are sporadic and some patients present with short-coupled torsade de pointes, the genetics of which are poorly understood. A man who had a first syncope at the age of 35 presented with frequent short-coupled premature ventricular beats with bursts of polymorphic ventricular tachycardia and then died suddenly. By exome sequencing, we identified three rare variants: p.I784F in the SPRY1 of the ryanodine receptor 2 (RyR2), p.A96S in connexin 40 (Cx40), reported to affect electrical coupling and cardiac conduction, and a nonsense p.R244X in the cardiac-specific troponin I-interacting kinase (TNNI3K). We assessed intracellular Ca |
---|---|
MeSH term(s) | Adult ; Aged ; Aged, 80 and over ; Calcium Signaling/genetics ; Connexins/genetics ; Death, Sudden/epidemiology ; Female ; HEK293 Cells ; Humans ; Male ; Membrane Proteins/genetics ; Middle Aged ; Myocardial Ischemia/genetics ; Myocardial Ischemia/pathology ; Phosphoproteins/genetics ; Protein Domains/genetics ; Protein Serine-Threonine Kinases/genetics ; Ryanodine Receptor Calcium Release Channel/genetics ; Torsades de Pointes/complications ; Torsades de Pointes/genetics ; Torsades de Pointes/pathology ; Ventricular Fibrillation/genetics ; Ventricular Fibrillation/pathology ; Exome Sequencing ; Gap Junction alpha-5 Protein |
Chemical Substances | Connexins ; Membrane Proteins ; Phosphoproteins ; RyR2 protein, human ; Ryanodine Receptor Calcium Release Channel ; SPRY1 protein, human ; Protein Serine-Threonine Kinases (EC 2.7.11.1) ; TNNI3K protein, human (EC 2.7.11.1) |
Language | English |
Publishing date | 2021-03-04 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2615211-3 |
ISSN | 2045-2322 ; 2045-2322 |
ISSN (online) | 2045-2322 |
ISSN | 2045-2322 |
DOI | 10.1038/s41598-021-84373-9 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.