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Analysis of IGF2 promoter-specific transcription using RT-PCR. Tumours 36, 42, and 35 are noninformative (no β-actin product). Promoters P2 and P3 gave equivalent intensity signals in all informative cases (not shown). Imprinting of IGF2 and FKHR translocation status is indicated. NT contains neither of the FKHR disrupting translocations. NI, noninformative for IGF2 imprinting, LOI, loss of IGF2 imprinting; ROI, retention of IGF2 imprinting.
