| miRBase | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Danio rerio, Takifugu rubripes and 151 others. | http://www.mirbase.org/ |
| miRTarBase | Homo sapiens, Rattus norvegicus, Mus musculus, Danio rerio, Gallus gallus, Drosophila melanogaster and 11 others. | http://mirtarbase.mbc.nctu.edu... |
| PhenomiR | Homo sapiens. | http://mips.helmholtz-muenchen... |
| sRNATarBase | Escherichia coli, Azobacter vinelandii, Bacillus subtilis, Listeria monocytogenes, Neisseria meningitides, Prochlorococcus marinus and 10 others. | http://ccb.bmi.ac.cn/srnatarba... |
| Trans-SAMap | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Danio rerio, Gallus gallus. | http://trans.cbi.pku.edu.cn/ |
