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Phylogenomic analysis and a systematic view of U-Box E3 family in rice
E3 ubiquitin ligase plays a central role in determining specificity of the ubiquitination system by selecting appropriate candidate proteins. Compared with other eukaryotic species there are significantly more U-box protein-encoding genes in plant genome. The rice genome contain 77 U-box-type E3 encoding genes. The 77 members of the rice plant U-box (PUB) E3 family can be placed into 8 major groups based on their domain organizations. In this study, we generate and analyze phylogenomic data integrating anatomical expression patterns consisting of anatomical and stress responsive expression patterns base on 1150 affymetrix arrays to the phylogenic tree of rice plant U-box E3 family. We further developed functional gene network meditated by E3 ligases and refined the components in network by integrating gene expression patterns in response to drought stresses. We expect that our analysis will be a useful platform to facilitate the functional identification for each of U-box E3 family.
