Article
Absence of myotonic dystrophy in southern African Negroids is associated with a significantly lower number of CTG trinucleotide repeats.
Journal of medical genetics - 1 Jan 1994
Goldman A, Ramsay M, Jenkins T
Abstract excerpt
Myotonic dystrophy (DM) is associated with an increased number of CTG repeats in the 3' untranslated region of the myotonin gene. Because DM has not been observed in southern African Negroids, a study of the CTG repeat polymorphism in this population was undertake. A total of 210 unrelated subjects was studied by PCR analysis of the trinucleotide repeat in the DM gene and the size and distribution of the CTG...
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