U12 intron database

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.^[1] 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.

U12DB

Content
Description	orthologous U12-type spliceosomal introns.
Contact
Authors	Tyler S Alioto
Primary citation	Alioto & al. (2007)[1]
Release date	2006
Access
Website	https://genome.crg.cat/datasets/u12/