A novel SEMA6B splice-site variant (c.1680-2A>G) causes incompletely penetrant epilepsy via diverse aberrant transcripts.
BACKGROUND While truncating variants in the SEMA6B gene are an established cause of Progressive Myoclonus Epilepsy-1(EPM11), the pathogenic mechanisms of non-last-exon splicing variants, particularly those underlying the frequent yet elusive phenomenon of incomplete penetrance, remain a critical knowledge gap. Elucidat...