Ontology highlight
ABSTRACT: Background
Internal ribosomal entry sites (IRESs) provide alternative, cap-independent translation initiation sites in eukaryotic cells. IRES elements are important factors in viral genomes and are also useful tools for bi-cistronic expression vectors. Most existing RNA structure prediction programs are unable to deal with IRES elements.Results
We designed an IRES search system, named IRSS, to obtain better results for IRES prediction. RNA secondary structure prediction and comparison software programs were implemented to construct our two-stage strategy for the IRSS. Two software programs formed the backbone of IRSS: the RNAL fold program, used to predict local RNA secondary structures by minimum free energy method; and the RNA Align program, used to compare predicted structures. After complete viral genome database search, the IRSS have low error rate and up to 72.3% sensitivity in appropriated parameters.Conclusion
IRSS is freely available at this website http://140.135.61.9/ires/. In addition, all source codes, precompiled binaries, examples and documentations are downloadable for local execution. This new search approach for IRES elements will provide a useful research tool on IRES related studies.
SUBMITTER: Wu TY
PROVIDER: S-EPMC2698906 | biostudies-literature | 2009 May
REPOSITORIES: biostudies-literature
Wu Tzong-Yuan TY Hsieh Chi-Chun CC Hong Jun-Jie JJ Chen Chung-Yung CY Tsai Yuh-Show YS
BMC bioinformatics 20090527
<h4>Background</h4>Internal ribosomal entry sites (IRESs) provide alternative, cap-independent translation initiation sites in eukaryotic cells. IRES elements are important factors in viral genomes and are also useful tools for bi-cistronic expression vectors. Most existing RNA structure prediction programs are unable to deal with IRES elements.<h4>Results</h4>We designed an IRES search system, named IRSS, to obtain better results for IRES prediction. RNA secondary structure prediction and compa ...[more]