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SlideshowReport

The overall process of splicing

Description
The pre-mRNA plus assorted snRNPs assemble and disassemble a spliceosome, which carries out the splicing reaction.

The snRNPs are designated U1, U2, and so on.

In step 1 U1 is bound, which together with U2 binding (step 2) leads to a looped structure.

Factors U4/6 and U5 then bind (step 3) and cleavage and transfer then occur (steps 4, 5).

The spliceosome disassembles, releasing the ligated product (6) and the looped intron (7).

This is degraded into small oligonucleotides (step 8).
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