Abstract:RAI1 is a dosage-sensitive gene whose decreased or increased expression by recurrent and non-recurrent 17p11.2 deletions or duplications causes Smith-Magenis (SMS) or Potocki-Lupski syndromes (PTLS), respectively. Here we report on a 21-year-old female patient showing SMS phenotype who was found to carry a 3.4 kb de novo intragenic RAI1 deletion. Interestingly, a significant increase in RAI1 transcript levels was identified in the patient’s, brother’s and mother’s peripheral blood cells. Allele-specific dosage… Show more
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