What are the roles of U1 and U2 snRNA in the splicing of mRNA? U2 binds to a 3\'
ID: 58205 • Letter: W
Question
What are the roles of U1 and U2 snRNA in the splicing of mRNA?
U2 binds to a 3' exon intron boundary and U1 binds to the export site
U1 binds to a 5' exon intron boundary and U2 binds to the branch point
U1 binds to U2 and the form a complex at the cap
U1 binds to duplexed DNA-RNA to aid in splice site skipping
U2 binds to a 3' exon intron boundary and U1 binds to the export site
U1 binds to a 5' exon intron boundary and U2 binds to the branch point
U1 binds to U2 and the form a complex at the cap
U1 binds to duplexed DNA-RNA to aid in splice site skipping
Explanation / Answer
Roles of U1 and U2 snRNA in the splicing of mRNA is U1 binds to a 5' exon intron boundary and U2 binds to the branch point becuase U1 first recognizes premRNA splice site and then U2 snRNA binds to the branch point