The spectrum of mutations in the low-density lipoprotein (LDL) receptor gene was studied in a sample of hypercholesterolemia patients of Caucasoid origin from the population of Russia. The examined patients were 45 to 49 years old and had the highest level of total serum cholesterol in this age group. Seven previously nondescribed mutations have been revealed in exon 9 (R410G; M412V) and in exon 12 (Y/Y576; N/N591; L605V; L605R; A612G). Twelve previously described mutations have been identified in exons 2 (C/C27), 5 (C261F; E240X), 6 (E288K), 8 (A391T), 9 (E418G; L432R; D433E), 11 (G/G549; E558K; L/L568), and 12 (G592E). Only one of these mutations was previously described in Russia in a clinical sample of patients with familial hypercholesterolemia. The spectrum of LDL receptor gene mutations in the population sample of patients with hypercholesterolemia significantly differs from the mutation spectrum in patients with familial hypercholesterolemia (clinical samples). Sequencing of the LDL receptor gene is a highly efficient method for identifying the markers of hypercholesterolemia predisposition in a population.
Russian Journal of Genetics – Springer Journals
Published: Oct 16, 2008
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