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Eukaryotic chromosomal DNA coils around histones to form nucleosomes. Although histone affinity for DNA depends on DNA sequence patterns, how nucleosome positioning is determined by them remains unknown. Here, we show relationships between nucleosome positioning and two structural characteristics of DNA conferred by DNA sequence. Analysis of bendability and hydroxyl radical cleavage intensity of nucleosomal...
The Fragile X mental retardation (FMR1) gene contains a polymorphic CGG trinucleotide repeat in the 5′-untranslated region. The repeat length in the normal population is between 5 and 54 repeats. A repeat length between 55 and 200 is defined as the pre-mutation repeat size. Elderly carriers of the pre-mutation can develop the progressive neurodegenerative disease Fragile X-associated tremor/ataxia...
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