Article
The Fragile X premutation: new insights and clinical consequences.
European journal of medical genetics - 1 Jan 2000
Van Esch Hilde
Abstract excerpt
The Fragile X syndrome (FXS, MIM 309550) is still the most prevalent cause of heritable mental retardation, with a frequency of 1/4000 males and 1/6000 females. The syndrome and its particular pattern of heredity are caused by a dynamic mutation, involving an unstable expansion of a trinucleotide (CGG) repeat at the 5' UTR of the FMR1 gene, located at Xq27.3. Expansion of this repeat region greater than 200...
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