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Mutation analysis of the MLL2 gene. Direct sequencing chromatograms displaying the heterozygote frameshift mutation for MLL2 (c.5256_5257delGA;p.Lys1753Alafs*34) in exon 22 (arrow) in a patient (A and B). (A) Patient: forward strand, (B) patient: reverse strand, (C) father, and (D) mother.
