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Nucleosome Positioning and RNA Splicing / 生物化学与生物物理进展
Progress in Biochemistry and Biophysics ; (12)2006.
Article in Chinese | WPRIM | ID: wpr-595545
ABSTRACT
Based on the characteristic of nucleotide distribution in nucleosome positioning and inhibiting sequences, the method of Increment of Diversity with Quadratic Discriminant (IDQD) was applied to the classification of these two types of sequences. The mean area under ROC curve archives 0.958. By using this model, the nucleosome formation potential was analyzed in the regions around the splice sites (GT/AG). The results show that coding regions have a high potential to form the nucleosome and the primary RNA transcripts are rigid, while DNA sequences corresponding to the splice sites and their adjacent intron regions tend to be nucleosome free and the primary transcripts from these regions are relative flexible. Moreover, the negative correlation between nucleosome positioning/inhibiting of DNA sequences and RNA flexibility/rigidity is demonstrated around the splice sites, providing a mechanism for understanding the correlation between the nucleosome positioning of DNA and the splicing of transcribed RNA sequences.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Progress in Biochemistry and Biophysics Year: 2006 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Prognostic study Language: Chinese Journal: Progress in Biochemistry and Biophysics Year: 2006 Type: Article