in this paper , the possibility is considered that the splicing of cellular 'pre-mrna ' can be regulated in such a way that the formation of the proper intramolecular double-stranded hairpin structures , key elements for rna splicing , is prevented by the binding of va rnai or rnaii to the nucleotide sequences around the exon-intron and intron-exon joint sites of cellular 'pre-mrna ' molecules .
C0021920
intron
C0007634
cellular