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Ion Channel Phosphorylopathy: a Link between Genomic Variation and Human Disease
Author(s) -
Gentile Saverio
Publication year - 2012
Publication title -
chemmedchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.817
H-Index - 100
eISSN - 1860-7187
pISSN - 1860-7179
DOI - 10.1002/cmdc.201200236
Subject(s) - ion channel , mechanism (biology) , neurodegeneration , biology , kinase , function (biology) , phosphorylation , disease , cytoplasm , microbiology and biotechnology , voltage gated ion channel , neuroscience , computational biology , bioinformatics , genetics , medicine , physics , receptor , quantum mechanics
Voltage‐gated ion channels (VGIC) regulate many important physiological events, including muscle contraction, brain function, and secretion. Mutations that inhibit or up‐regulate VGIC activities can dramatically interfere with the normal function of several organs, leading to unpredictable failure and therefore poor quality of life or even death. Many genomic variations that change amino acids in cytoplasmic domains of ion channels have been found to be associated with several diseases, including cardiac arrhythmias and neurodegeneration. However, a mechanism linking these mutations to ion channel malfunction has not been clearly established and in some cases is totally unknown. This concept article gives an overview on a possible mechanism by which disease‐associated mutations in cytoplasmic domains of ion channels can affect channel activity by creating or disrupting phosphorylation sites for specific kinases. We call these events “ion channel phosphorylopathies”. Understanding ion channel phosphorylopathies offers the opportunity to find a mechanism linking genomic variations to human disease and is crucial to the process of designing an effective pharmacological strategy.