1. The RNA-based COVID vaccines are composed of lipid nanoparticles which contain mRNA within
a lipid-based cover (see Figure 1). Note two major functions for the lipid-based cover.
2. The RNA to be delivered by the nanoparticle must be translated in the cytosol of the recipient
cells in order to produce the SARS-CoV-2 spike protein (see top half of figure on page 191 of the
Nature article).
The line below is a generic representation of this RNA. Indicate on the RNA functional sequences
or components that would be expected to be found on this injected mature mRNA to ensure
that it would be effectively utilized to produce a viral spike protein in the cytosol of the recipient
cell. Below the drawing, indicate the function of each of the functional components that are
present in your mRNA.
5'---------------------------3'
3. Would it be helpful if the mRNA contained introns? Why or why not?