Statistical prediction of single-stranded regions in RNA secondary structure and application to predicting effective antisense target sites and beyond.
Nucleic Acids Res
; 29(5): 1034-46, 2001 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-11222752
ABSTRACT
Single-stranded regions in RNA secondary structure are important for RNA-RNA and RNA-protein interactions. We present a probability profile approach for the prediction of these regions based on a statistical algorithm for sampling RNA secondary structures. For the prediction of phylogenetically-determined single-stranded regions in secondary structures of representative RNA sequences, the probability profile offers substantial improvement over the minimum free energy structure. In designing antisense oligonucleotides, a practical problem is how to select a secondary structure for the target mRNA from the optimal structure(s) and many suboptimal structures with similar free energies. By summarizing the information from a statistical sample of probable secondary structures in a single plot, the probability profile not only presents a solution to this dilemma, but also reveals 'well-determined' single-stranded regions through the assignment of probabilities as measures of confidence in predictions. In antisense application to the rabbit beta-globin mRNA, a significant correlation between hybridization potential predicted by the probability profile and the degree of inhibition of in vitro translation suggests that the probability profile approach is valuable for the identification of effective antisense target sites. Coupling computational design with DNA-RNA array technique provides a rational, efficient framework for antisense oligonucleotide screening. This framework has the potential for high-throughput applications to functional genomics and drug target validation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Algoritmos
/
RNA
/
RNA Antissenso
/
Conformação de Ácido Nucleico
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
Nucleic Acids Res
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Estados Unidos