A novel approach of cell-free peptide synthesis and SNPs detection using nano-circular single-stranded DNA.

Development of peptide/protein synthesis is very important for investigating the functions of peptides and proteins. The advantages of cell-free synthesis, which has been extensively developed, include the ability to synthesize toxic proteins, aggregated proteins and proteins containing unnatural amino acids. However, this promising approach does not have a high reaction yield. In this study, we examine whether the rolling synchronization system, which produces long RNAs with a repeated sequence encoded by very small circular ssDNAs without the promoter sequence for RNA polymerase, can be used for cell-free peptide synthesis to improve the reaction yield. As a result, we have found that rolling synchronization is useful for large-scale cell-free peptide/protein synthesis.