The polyA tail is in the 3′ UTR (after the stop codon) and is not translated. It doesn’t appear in the final protein sequence. It’s also a fairly standard feature.
To be clear, it's not translated into the final antibody, but it remains present in the vaccine, and hence in your body - it is what gives the vaccine structural stability in the body.
...and yes, it is standard - it is not covid-vaccine specific.
This is all covered in This Week in Virology - one of the recent episodes about 3 months ago.
...and yes, it is standard - it is not covid-vaccine specific.
This is all covered in This Week in Virology - one of the recent episodes about 3 months ago.