Abstract: Disclosed is a method of preparing nucleic acid molecules, including: providing a pool of oligonucleotides, each containing restriction enzyme digestion sequences and generic flanking sequences; cleaving the restriction enzyme digestion sequence portions to provide a pool of mixtures comprising the oligonucleotides, each containing the generic flanking sequences at one end, and the oligonucleotides, each containing none of the generic flanking sequences at one end, and; assembling the oligonucleotides using the generic flanking sequences to randomly synthesize nucleic acid fragments.

Abstract: Proposed is a method of easily finding an error during analysis of various library sequences of nucleic acid base sequences after synthesizing a gene library using a combination of three nucleic acid base sequences (codon) translated into the same protein. This shows that it is possible to create a gene library having the same protein sequence but different nucleic acid base sequences. The present disclosure provides a novel experimental method capable of measuring a correlation between gene expression according to change in a codon by changing the usage of a codon optimized to express a specific gene in vivo.

Abstract: Disclosed is a method of preparing nucleic acid molecules, including: providing a pool of oligonucleotides, each containing restriction enzyme digestion sequences and generic flanking sequences; cleaving the restriction enzyme digestion sequence portions to provide a pool of mixtures comprising the oligonucleotides, each containing the generic flanking sequences at one end, and the oligonucleotides, each containing none of the generic flanking sequences at one end, and; assembling the oligonucleotides using the generic flanking sequences to randomly synthesize nucleic acid fragments.

Abstract: Provided is a method of preparing nucleic acid molecules comprising: (a) a step of providing nucleic acid fragments constituting at least a portion of the complete sequence of a target nucleic acid; (b) tagging the nucleic acid fragments with barcode sequences; (c) identifying the sequence of the nucleic acid fragments tagged by the barcode sequences; and (d) recovering desired nucleic acid fragments among the sequence-identified nucleic acid fragments using the barcode sequences.