Except for PLA-06-01, whose causative gene mutation was not identified, the deficiencies found in the pediatric LS patients included the following genes: MT-ND3, MT ND5, MT-ND6, TRMT5, MT-ATP6, ECHS1, NDUFV2, SCN8A, and SURF1. The gene discussed is SCN8A; the disease is Leigh syndrome.