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Biallelic expression of LIT1 occurs frequently in BWS patients. Samples from patients 15, 3, and 41 are heterozygous for SNP2 (gDNA), and patients 4, 21, and 5 are heterozygous for SNP1 and were analyzed in the same manner as in Fig. 2. Examples of biallelic (patients 15, 3, 4, and 21) and monoallelic (patients 41 and 5) expression for each polymorphism are shown. The results for all 16 informative BWS patients analyzed are shown in Table 1.
