Microduplications of 3p26.3p26.2 containing CRBN gene in patients with intellectual disability and behavior abnormalities.

Eur J Med Genet 2015 May 6;58(5):319-23. Epub 2015 Apr 6.

Institut fuer Klinische Genetik, Medizinische Fakultaet Carl Gustav Carus, TU Dresden, Dresden, Germany.

We report on the clinical data and molecular cytogenetic findings in three unrelated patients presenting with intellectual disability and behavior abnormalities. An overlapping microduplication involving 3p26.2-26.3 was identified in these patients. All three aberrations were confirmed and proven to be parentally inherited. The sizes of the duplications were different, with a common minimal region of 423,754 bp containing two genes - TRNT1 and CRBN. Here, we hypothesize that the copy number gain of CRBN gene might be responsible for developmental delay/intellectual disability.

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http://dx.doi.org/10.1016/j.ejmg.2015.03.005DOI Listing
May 2015
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