doi: 10.5732/cjc.012.10151

GOMA: functional enrichment analysis tool based on GO modules

Qiang Huang, Ling-Yun Wu, Yong Wang , Xiang-Sun Zhang

National Center for Mathematics and Interdisciplinary Sciences, Institute of Applied Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, P. R. China.

[Abstract] Analyzing the function of gene sets is a critical step in interpreting the results of high-throughput experiments in systems biology. A variety of enrichment analysis tools have been developed in recent years, but most output a long list of significantly enriched terms that are often redundant, making it difficult to extract the most meaningful functions. In this paper, we present GOMA, a novel enrichment analysis method based on the new concept of enriched functional Gene Ontology (GO) modules. With this method, we systematically revealed functional GO modules, i.e., groups of functionally similar GO terms, via an optimization model and then ranked them by enrichment scores. Our new method simplifies enrichment analysis results by reducing redundancy, thereby preventing inconsistent enrichment results among functionally similar terms and providing more biologically meaningful results.

Chinese Journal of Cancer 2013, Volume: 32, Issue 4, Page: 195-204

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Qiang Huang, Ling-Yun Wu, Yong Wang , Xiang-Sun Zhang. GOMA: functional enrichment analysis tool based on GO modules. Chin J Cancer. 2013, 32(4):195-204. doi:10.5732/cjc.012.10151


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