Select the pulldown-menu(Splicing Type) “cassette”on the center of the top page, the push “Search!” button. None [1] Nagasaki, H., Arita, M., Nishizawa, T., Suwa, M., and Gotoh, O. (2005) “Species-specific variation of alternative splicing and transcriptional initiation in six eukaryotes.” Gene, 364, 53-62. [2] Nagasaki, H., Arita, M., Nishizawa, T., Suwa, M., Gotoh, O. (2006) “Automated classification of alternative splicing and transcriptional initiation and construction of a visual database of the classified patterns.” Bioinformatics, 22 (10), 1211-1216. ASTRA is a database that classifies alternative splicing patterns and alternative transcriptional initiation patterns of Human, Mouse, D.melanogaster, C.elegans, A.thaliana, O. sativa. (cited from the original site)