| Comparative analysis of splice site regions by information content. | |
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MedLine Citation:
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PMID: 17531798 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We have applied concepts from information theory for a comparative analysis of donor (gt) and acceptor (ag) splice site regions in the genes of five different organisms by calculating their mutual information content (relative entropy) over a selected block of nucleotides. A similar pattern that the information content decreases as the block size increases was observed for both regions in all the organisms studied. This result suggests that the information required for splicing might be contained in the consensus of approximately 6-8 nt at both regions. We assume from our study that even though the nucleotides are showing some degrees of conservation in the flanking regions of the splice sites, certain level of variability is still tolerated, which leads the splicing process to occur normally even if the extent of base pairing is not fully satisfied. We also suggest that this variability can be compensated by recognizing different splice sites with different spliceosomal factors. |
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Authors:
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T Shashi Rekha; Chanchal K Mitra |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Genomics, proteomics & bioinformatics Volume: 4 ISSN: 1672-0229 ISO Abbreviation: Genomics Proteomics Bioinformatics Publication Date: 2006 Nov |
Date Detail:
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Created Date: 2007-06-01 Completed Date: 2007-06-27 Revised Date: 2012-09-10 |
Medline Journal Info:
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Nlm Unique ID: 101197608 Medline TA: Genomics Proteomics Bioinformatics Country: China |
Other Details:
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Languages: eng Pagination: 230-7 Citation Subset: IM |
Affiliation:
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Department of Biochemistry, University of Hyderabad, Hyderabad 500046, India. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arabidopsis / genetics Exons / genetics* Introns / genetics* Models, Theoretical* RNA Splicing* |
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