A loss of function mutation in the CACNB2B gene alters the  encoding for the α1- and β2b-subunits of the L-type calcium channel. The phenotype is similar to Brugada syndrome combined with a short QT interval.  There is an increased risk of sudden cardiac death.
Short QT syndrome type 5
Short QT syndrome type 1
Short QT syndrome type 4
Short QT syndrome type 2
Short QT syndrome type 3
Long QT Syndrome
Long QT syndrome
Singh-Williams-McAlister syndrome