Journal
DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION
Volume -, Issue -, Pages -Publisher
OXFORD UNIV PRESS
DOI: 10.1093/database/bav095
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Funding
- National Natural Science Foundation of China (NSFC) [61572287, 61533011]
- Shandong Provincial Natural Science Foundation of China [ZR2015FQ001]
- Fundamental Research Funds of Shandong University [2014TB006]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China
- University of Rochester Center for Biodefense Immune Modeling Grant (NIH/NIAID) [HHSN272201000055C]
- University of Rochester Center for AIDS Research Grant (NIH/NIAID) [P30AI078498]
- NIH [R01GM100788]
- Dr. Hulin Wu's start-up fund
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Transcriptional and post-transcriptional regulation of gene expression is of fundamental importance to numerous biological processes. Nowadays, an increasing amount of gene regulatory relationships have been documented in various databases and literature. However, to more efficiently exploit such knowledge for biomedical research and applications, it is necessary to construct a genome-wide regulatory network database to integrate the information on gene regulatory relationships that are widely scattered in many different places. Therefore, in this work, we build a knowledge-based database, named 'RegNetwork', of gene regulatory networks for human and mouse by collecting and integrating the documented regulatory interactions among transcription factors (TFs), microRNAs (miRNAs) and target genes from 25 selected databases. Moreover, we also inferred and incorporated potential regulatory relationships based on transcription factor binding site (TFBS) motifs into RegNetwork. As a result, RegNetwork contains a comprehensive set of experimentally observed or predicted transcriptional and post-transcriptional regulatory relationships, and the database framework is flexibly designed for potential extensions to include gene regulatory networks for other organisms in the future. Based on RegNetwork, we characterized the statistical and topological properties of genome-wide regulatory networks for human and mouse, we also extracted and interpreted simple yet important network motifs that involve the interplays between TF-miRNA and their targets. In summary, RegNetwork provides an integrated resource on the prior information for gene regulatory relationships, and it enables us to further investigate context-specific transcriptional and post-transcriptional regulatory interactions based on domain-specific experimental data.
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