| Abstrakt: |
Children, residents of the Russian Federation, with congenital isolated growth hormone deficiency, were screened for mutations of GH-1 gene, the main gene of this deficiency. Twenty-eight children from 26 families with total congenital isolated growth hormone deficiency were examined. Direct sequencing of GH-1 detected five splicing mutations in intron 2, intron 3, and exon 4, two of them were never described previously. Three dominant negative mutations of GH-1 splicing, the basis for autosomal dominant isolated growth hormone deficiency (type II), are presented: IVS2 -2A>T, IVS3 +2T>C, and IVS3 +1GA mutation can be regarded as the most incident in type II isolated growth hormone deficiency in the Russian population. |
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