In another large number of BAFME patients in Japan [10], the cause was attributed to large expansions of intronic TTTCA and TTTTA repeats in SAMD12. We wished to know whether our patient has such an expansion in SAMD12. We sequenced this patient’s genomic DNA using a PacBio Sequel sequencer. Here, SAMD12 is linked to benign adult familial myoclonic epilepsy.