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ESEfinder: A web resource to identify exonic splicing enhancers.
Luca Cartegni1, Jinhua Wang, Zhengwei Zhu
1Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.
Nucleic Acids Research
|June 26, 2003
Summary
Point mutations can cause genetic diseases by disrupting pre-mRNA splicing, often by affecting exonic splicing enhancers (ESEs). ESEfinder is a tool to identify these elements and predict mutation impacts on splicing.
Area of Science:
- Molecular Biology
- Genetics
- Bioinformatics
Background:
- Point mutations in coding sequences can lead to genetic diseases by altering pre-mRNA splicing patterns.
- The impact of mutations is often attributed to amino acid changes, but disruption of exonic splicing enhancers (ESEs) can cause severe protein structure alterations, including exon skipping.
- ESEs are crucial for alternative splicing, and their consensus motifs can be difficult to identify.
Purpose of the Study:
- To introduce ESEfinder, a web-based resource for analyzing exon sequences.
- To identify putative ESEs responsive to specific human SR proteins (SF2/ASF, SC35, SRp40, SRp55).
- To predict the impact of exonic mutations on ESEs and subsequent splicing.
Main Methods:
- Development of a web-based tool, ESEfinder.
- Analysis of exon sequences to detect ESE consensus motifs.
- Prediction of mutation effects on ESE function and splicing outcomes.
Main Results:
- ESEfinder facilitates rapid identification of potential ESEs.
- The tool can predict whether exonic mutations disrupt identified ESEs.
- This aids in understanding mutation-induced splicing defects.
Conclusions:
- Point mutations affecting ESEs are a significant cause of genetic diseases via splicing disruption.
- ESEfinder provides a valuable resource for identifying ESEs and predicting mutation impacts.
- Understanding ESE function is critical for diagnosing and potentially treating genetic disorders related to splicing.