Title:Bioinformatics Insights on the Physicochemical Properties of SCN5A
Mutant Proteins Associated with the Brugada Syndrome
Volume: 30
Issue: 15
关键词:
SCN5A,SCN5A基因,SNC5A突变蛋白,结构蛋白质组学,生物信息学,内在疾病易感性谱,极性指数方法谱。
摘要:
Background: The Brugada syndrome (BrS) is a heart rhythm condition that is
commonly associated with a strong predisposition for sudden cardiac death. Malignant
ventricular arrhythmias could occur secondary to the dysfunction of the cardiac sodium
voltage-gated Na(v)1.5 channel (SCN5A).
Objective: This study aimed to perform a multiparametric computational analysis of the
physicochemical properties of SCN5A mutants associated with BrS using a set of bioinformatics
tools.
Methods: In-house algorithms were calibrated to calculate, in a double-blind test, the Polarity
Index Method (PIM) profile and protein intrinsic disorder predisposition (PIDP)
profile of each sequence, and computer programs specialized in the genomic analysis
were used.
Results: Specific regularities in the charge/polarity and PIDP profile of the SCN5A mutant
proteins enabled the re-creation of the taxonomy, allowing us to propose a bioinformatics
method that takes advantage of the PIM profile to identify this group of proteins
from their sequence.
Conclusion: Bioinformatics programs could reproduce characteristic PIM and PIDP profiles
of the BrS-related SCN5A mutant proteins. This information can contribute to a better
understanding of these altered proteins.