PUBLICATION
Identification and genetic analysis of rare variants in myosin family genes in 412 Han Chinese congenital heart disease patients
- Authors
- Zhang, Y., Peng, R., Wang, H.
- ID
- ZDB-PUB-220824-18
- Date
- 2022
- Source
- Molecular genetics & genomic medicine 10(10): e2041 (Journal)
- Registered Authors
- Keywords
- MYL2, congenital heart disease, myosin family, rare variants, zebrafish
- MeSH Terms
-
- Animals
- China
- Heart Defects, Congenital*/genetics
- Morpholinos
- Myosin Heavy Chains
- Myosin Light Chains*/genetics
- Zebrafish/genetics
- PubMed
- 35993536 Full text @ Mol Genet Genomic Med
Citation
Zhang, Y., Peng, R., Wang, H. (2022) Identification and genetic analysis of rare variants in myosin family genes in 412 Han Chinese congenital heart disease patients. Molecular genetics & genomic medicine. 10(10):e2041.
Abstract
Background Myosin family genes, including those encoding myosin heavy chain 6, myosin heavy chain 7, myosin light chain 3, and myosin light chain 2 (MYL2), are important genetic factors in congenital heart disease (CHD). However, how these genes contribute to CHD in the Han Chinese population remains unclear.
Methods We sequenced myosin family genes in a Han Chinese cohort comprising 412 CHD patients and 213 matched controls in the present study. A zebrafish model was used to evaluate the pathogenicity of rare mutations in MYL2.
Results We identified 30 known mutations and 12 novel mutations. Furthermore, the contributions of two novel mutations, MYL2 p.Ile158Thr and p.Val146Met, to CHD were analyzed. The p.Ile158Thr mutation increased MYL2 expression. In zebrafish embryos, injection of myl2b-targeting morpholinos led to aberrant cardiac structures, an effect that was reversed by expression of wild-type MYL2 but not MYL2 p.Ile158Thr and pVal146Met.
Conclusions Overall, our findings suggest that MYL2 p.Ile158Thr and p.Val146Met contribute to the etiology of CHD. The results also indicate the importance of MYL2 in heart formation.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping