We provide here 29 genetic variations, including 28 novel ones, in five gen
es that are potentially involved in the excitement of cardiomyocytes: we fo
und 4 in KCNA10, 2 in KCNK1, 8 in KCNK6, 11 in SLC18A1 (VMAT1), and 4 in SL
C6A2 (norepinephrine transporter). We also examined their allelic frequenci
es in a Japanese population of long QT syndrome-affected and nonaffected in
dividuals. These data would be useful for genetic association studies desig
ned to investigate acquired arrhythmias.