SYNTHESIS OF DNA MOLECULES IN IN VITRO ENZYMATIC SYSTEMS

    公开(公告)号:US20240141400A1

    公开(公告)日:2024-05-02

    申请号:US18494425

    申请日:2023-10-25

    申请人: Fenfei LENG

    发明人: Fenfei LENG

    IPC分类号: C12P19/34 C12Q1/6844

    CPC分类号: C12P19/34 C12Q1/6846

    摘要: A method, which synthesizes closed circular single-stranded and double-stranded DNA molecules using in vitro enzymatic systems, is described. Circular single-stranded DNA molecules and double-stranded DNA molecules (e.g., relaxed, or supercoiled) with various sizes can be synthesized. Unwanted DNA molecules, e.g., unligated oligomers, can be removed by exonucleases, such as T5 exonuclease, T7 exonuclease, lambda exonuclease, E. coli exonuclease I and/or III. A method of converting the single-stranded circular DNA molecules into double-stranded circular DNA molecules is also described. The single-stranded and double-stranded circular DNA molecules can be used in a variety of applications.