splice site
splice site
splice site
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1.3 Exons from different RNA<br />
molecules can be fused by Trans-<br />
splicing<br />
• The 5’ 5 <strong>splice</strong> <strong>site</strong> of one exon is not always<br />
joint to the 3’ 3 <strong>splice</strong> <strong>site</strong> of the exon.Some<br />
exons can be skipped,and a given exon is<br />
joint to one further downstream.<br />
• Trans-splicing(<br />
splicing( 反 式 剪 接 ): the process in<br />
which two exons carried on different RNA<br />
molecules can be <strong>splice</strong>d together. It occurs<br />
in most all the mRNAs of trypanosomes and<br />
all the mRNA of the nematode worms.