Formation of the Spliceosomal E complex
Formation of the Spliceosomal A Complex
Formation of the Spliceosomal B Complex
Formation of the Cleavage and Polyadenylation Complex
Formation of an intermediate Spliceosomal C complex
Formation of the active Spliceosomal C complex
Lariat Formation and 5'-Splice Site Cleavage
Formation of Exon Junction Complex
Cleavage at the 3'-Splice Site and Exon Ligation
U2 Dependent Splicing
mRNA Splicing - Major Pathway
pre-mRNA splicing