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| Content | |
|---|---|
| Description | orthologous U12-type spliceosomal introns. |
| Contact | |
| Authors | Tyler S Alioto |
| Primary citation | Alioto & al. (2007) |
| Release date | 2006 |
| Access | |
| Website | https://genome.crg.cat/datasets/u12/ |
U12 Intron Database (U12DB) is a biological database of containing the sequence of eukaryotic introns that are spliced out by a specialised minor spliceosome that contains U12 minor spliceosomal RNA in place of U2 spliceosomal RNA. These U12-dependent introns are under-represented in genome annotations because they often have non canonical splice sites. Release 1 of the database contains 6,397 known and predicted U12-dependent introns across 20 species.