splice site
splice site
splice site
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4.3 A small group of intron are<br />
<strong>splice</strong>d by minor <strong>splice</strong>osome<br />
• Some pre-mRNAs are <strong>splice</strong>d by a low-<br />
abundance form of <strong>splice</strong>osome.This rare<br />
form contains some components common to<br />
the major <strong>splice</strong>osome but other unique<br />
components as well.<br />
• This minor <strong>splice</strong>osome recognizes rarely<br />
occuring introns having consensus<br />
sequences dinstict from the sequence of<br />
most pre-mRNA<br />
• Despite the different <strong>splice</strong> <strong>site</strong> and branch<br />
<strong>site</strong> sequences recognized by the two<br />
systems,these major and minor forms of<br />
<strong>splice</strong>osomes both remove introns using the<br />
same chemical pathway.