. "\"A spliceosomal complex that is formed by association of the U1 snRNP with the 5' splice site of an unspliced intron in an RNA transcript.\" [GOC:krc, ISBN:0879695897, PMID:9150140]" . . "commitment complex" . . "mammalian spliceosomal complex E" . "mammalian spliceosomal E complex" . "yeast spliceosomal complex CC" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .