Although hundreds of miRNAs have been discovered in mammalian genomes, the function of less than a handful of miRNAs is known. This viewer allows access to the predicted protein coding gene targets that are conserved between human and mouse/rat. Searching by miRNA will display a ranked list of gene targets and allow you to analyze each conserved target gene/sites in detail. Similarly, searching by gene name/identifier will display the sequence of the three prime UTR and the positions of the miRNA sites along the sequence, allowing you to analyze the target sites in detail.