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Revision as of 20:42, 31 July 2017
What is Alternative splicing?
Alternative splicing is a process that takes mRNA transcripts and modifies it in various ways to create a final mature mRNA molecule for translation. Some sequences known as introns are removed; other sequences known as exons remain to be translated. With such a process, a single gene can result in many types of proteins transcripts
Our iGEM projects seeks to control alternative splicing of RNA, specifically exon skipping and inclusion, using a protein called Cas13a. This is a protein that attaches to RNA via a complementary guide RNA, then cuts the RNA strand. For our purposes, we're using a modified version of this protein, known as dCas13a, that can attach, but doesn't cut. By targeting certain portions of a fluorescent protein construct, we can determine whether or not we achieved the intended isoforms based on the presence or absence of the fluorescent protein in addition to sequencing.