The proximity to the WS region of the gene encoding the L-type voltage-gated calcium channel alpha 2/delta-subunit (CACNL2A) on 7q11.23-q21.1, previously shown to be closely linked to some forms of MH susceptibility, prompted us to investigate whether this gene is deleted in WS.
CACNA2 encodes the alpha(2)/delta subunit of the human voltage-gated calcium channels and is located in the candidate region of malignant hyperthermia susceptibility type 3 (MHS3).
The sequence analysis provides the basis for comprehensive mutation screening of CACNA2 for putative MHS3 individuals and patients with other channelopathies.