Fig. 4From: Design of a multi-epitope-based peptide vaccine against the S and N proteins of SARS-COV-2 using immunoinformatics approachClone of the designed vaccine construct. The optimized codon sequence of the designed vaccine construct (shown in green) was cloned between the XhoI and BamHI enzyme loci in the expression vector pET-28a (+) (shown in black)Back to article page