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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Specific cloning of human DNA as yeast artificial chromosomes by transformation-associated recombination
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Specific cloning of human DNA as yeast artificial chromosomes by transformation-associated recombination

机译:通过转化相关重组特异性克隆人类DNA作为酵母人工染色体

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摘要

DNA molecules undergoing transformation into yeast are highly recombinogenic, even when diverged. We reasoned that transformation-associated recombination (TAR) could be employed to clone large DNAs containing repeat sequences, thereby eliminating the need for in vitro enzymatic reactions such as restriction and ligation and reducing the amount of DNA handling. Gently isolated human DNA was transformed directly into yeast spheroplasts along with two genetically marked (M1 and M2) linearized vectors that contained a human Alu sequence at one end and a telomere sequence at the other end (Alu-CEN-M1-TEL and Alu-M2-TEL).
机译:经历转化为酵母的DNA分子即使在发生分歧时也具有很高的重组原性。我们认为可以采用转化相关重组(TAR)克隆包含重复序列的大DNA,从而消除了对体外酶促反应(如限制酶和连接酶)的需要,并减少了DNA处理量。轻轻分离的人类DNA与两个遗传标记的线性化载体(M1和M2)一起直接转化到酵母原生质球中,线性化载体的一端包含一个人Alu序列,另一端包含一个端粒序列(Alu-CEN-M1-TEL和Alu- M2-TEL)。

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