Formation of the Lariat Structure during removal of intron equivalents
The donor site is joined covalently to the branch site, the covalent structure is clipped out at the acceptor site, and the 3' and 5' ends of the adjacent exons are joined. The RNA 'lariat' structure is subsequently degraded
Figure © 2012 TA Brown, Introduction
to Genetics (1st ed.); additional
text © 2014 by Steven M. Carr