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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chao Dai Wenyuan Li Liu, J. Zhou, X.J. |
| Copyright Year | 2011 |
| Description | Author affiliation: Molecular and Computational Biology, Department of Biological Sciences, University of Southern California, Los Angeles, 90089, USA (Wenyuan Li; Zhou, X.J.) || School of Computer, Wuhan University, 430072, China (Chao Dai; Liu, J.) |
| Abstract | Alternative splicing is a ubiquitous gene regulatory mechanism that dramatically increases the complexity of the proteome. In this paper we study splicing module, which we define as a set of cassette exons co-regulated by the same splicing factors. We have designed a tensor-based approach to identify co-splicing clusters that appear frequently across multiple conditions, thus very likely to represent splicing modules - a unit in the splicing regulatory network. In particular, we model each RNA-seq dataset as a co-splicing network, where the nodes represent exons and the edges are weighted by the correlations between exon inclusion rate profiles. We apply our tensor-based method to the 19 co-splicing networks derived from RNA-seq datasets and identify an atlas of frequent co-splicing clusters. We demonstrate that these identified clusters represent splicing modules by validating against four biological knowledge databases. The likelihood that a frequent co-splicing cluster is biologically meaningful increases with its recurrence across multiple datasets, highlighting the importance of the integrative approach. We also demonstrate that the co-splicing clusters reveal novel functional groups which cannot be identified by co-expression clusters, and that the same exons can dynamically participate in different pathways depending on different conditions and different other exons that are co-spliced. |
| Starting Page | 267 |
| Ending Page | 273 |
| File Size | 970820 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781457716614 |
| e-ISBN | 9781457716669 |
| e-ISBN | 9781457716652 |
| DOI | 10.1109/ISB.2011.6033164 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-09-02 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Proteins Tensile stress Correlation Databases Splicing Power capacitors Optimization |
| Content Type | Text |
| Resource Type | Article |
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