| microTranspoGene | Homo sapiens, Mus musculus, Danio rerio, Caenorhabditis elegans. | http://transpogene.tau.ac.il/m... |
| NATsDB | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Danio rerio, Gallus gallus. | http://natsdb.cbi.pku.edu.cn/ |
| NONCODE | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Danio rerio, Takifugu rubripes and 908 others. | http://www.noncode.org/ |
| piRNABank | Homo sapiens, Rattus norvegicus, Mus musculus, Danio rerio, Drosophila melanogaster, Ornithorhynchus anatinus. | http://pirnabank.ibab.ac.in/ |
| RepTar | Homo sapiens, Mus musculus, Human EBV virus, Human HCMV virus, Human KSHV virus, Mouse MCMV virus. | http://bioinformatics.ekmd.huj... |
| S-MED | Homo sapiens. | http://www.oncomir.umn.edu/SME... |
| The UCSC Genome Browser database | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Macaca mulatta, Bos Taurus and 40 others. | http://genome.ucsc.edu/ |
