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The emerging RNA-Seq technology makes it possible to infer splicing variants from millions of short sequence reads. Here we present a method to identify isoforms by their specific signatures on chromosomes including both exons and junctions. By applying this method to a RNA-Seq dataset of gastric cancer, we showed that our method is more accurate and sensitive than other isoform inference tools such as RSEM and Cufflinks. By constructing a network from gene list identified by our method but missed by other tools, we found that some cancer-related genes enriched in network modules have significant implications for cancer drug discovery.

KEYWORDS

RNA-Seq; isoform inference; cancer genes; Cufflinks; RSEM

Cite this paper

Ji, Y. and Wei, J. 2013 Isoform Inference From RNA-Seq Samples Based on Gene Structures on Chromosomes. Journal of Biosciences and Medicines, 1, 1-5. doi: 10.4236-jbm.2013.11001.





Author: Yan Ji, Jia Wei

Source: http://www.scirp.org/



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