Diagramatic structure of a typical human protein coding mRNA including the untranslated regions (UTRs).It is drawn approximately to scale. The cap is only one modified base, average <a href="https://en.wikipedia.org/wiki/5%27_UTR" class="extiw" title="en:5' UTR">en:5' UTR</a> length 170, <a href="https://en.wikipedia.org/wiki/3%27_UTR" class="extiw" title="en:3' UTR">en:3' UTR</a> 700.
<a href="https://en.wikipedia.org/wiki/User:TransControl" class="extiw" title="wikipedia:User:TransControl">TransControl</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>
3 October 2006 (original upload date)
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.