DLK1 allelic expression patterns in AML. (A) Monoallelic DLK1 expression. Genomic DNA sequencing (top) showing informative SNP at rs#1802710; cDNA sequencing (bottom) shows monoallelic expression (part #8107). (B) Biallelic DLK1 expression. Genomic DNA sequencing (top) showing informative SNP at rs#1802710; cDNA sequencing (bottom) shows biallelic expression (part #8101). (C) Comparison of DLK1 expression in patients with monoallelic (7 patients) and biallelic (22 patients) DLK1 expression. *P < .002. DLK1 levels were normalized using GAPDH. (D) Comparison of MEG3 expression in patients with monoallelic and biallelic DLK1 expression (P = .52). MEG3 levels were normalized using GAPDH.