DNA is not a protein, DNA is not a type of protein, DNA is not formed from protein. DNA is not formed using instructions from mRNA, nor is it modified by mRNA.

DNA is not a protein, DNA is not a type of protein, DNA is not formed from protein. DNA is not formed using instructions from mRNA, nor is it modified by mRNA. DNA is made up of nucleotides, proteins are made up of amino acids. They are chemically different things. As every medical expert has been saying for months now, the vaccine doesn't effect your DNA. The immune response is what causes the side effects, and the immune response is stronger with the second dose (this follows intuitively from immunity being more robust after 2 doses).