 Some transcripts contain a differentially methylated region (DMR) within their 5' exons; such DMRs are commonly found in imprinted genes and correlate with transcript expression.An antisense transcript also exists, and this antisense transcript and one of the sense transcripts are paternally expressed, produce non-coding RNAs and may regulate imprinting in this region.In addition, one of the transcripts contains a second frame-shifted open reading frame, which encodes a structurally unrelated protein named ALEX.