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Nucleic Acids Res. 2006 Jan 1;34(Database issue):D135-9.

miRNAMap: genomic maps of microRNA genes and their target genes in mammalian genomes.

Author information

1
Institute of Bioinformatics, National Chiao Tung University, Hsin-Chu 300, Taiwan, ROC.

Abstract

Recent work has demonstrated that microRNAs (miRNAs) are involved in critical biological processes by suppressing the translation of coding genes. This work develops an integrated database, miRNAMap, to store the known miRNA genes, the putative miRNA genes, the known miRNA targets and the putative miRNA targets. The known miRNA genes in four mammalian genomes such as human, mouse, rat and dog are obtained from miRBase, and experimentally validated miRNA targets are identified in a survey of the literature. Putative miRNA precursors were identified by RNAz, which is a non-coding RNA prediction tool based on comparative sequence analysis. The mature miRNA of the putative miRNA genes is accurately determined using a machine learning approach, mmiRNA. Then, miRanda was applied to predict the miRNA targets within the conserved regions in 3'-UTR of the genes in the four mammalian genomes. The miRNAMap also provides the expression profiles of the known miRNAs, cross-species comparisons, gene annotations and cross-links to other biological databases. Both textual and graphical web interface are provided to facilitate the retrieval of data from the miRNAMap. The database is freely available at http://mirnamap.mbc.nctu.edu.tw/.

PMID:
16381831
PMCID:
PMC1347497
DOI:
10.1093/nar/gkj135
[Indexed for MEDLINE]
Free PMC Article
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