利用T载体克隆快速构建布鲁氏菌缺失突变株

doi:Q785

中国生物工程杂志

2010, Vol. 30

Issue (09): 62-67 DOI: Q785

技术与方法

利用T载体克隆快速构建布鲁氏菌缺失突变株

白耀霞^1,2,杨毅²,王玉飞²,王同坤²,于爽²,陈燕芬²,付思美²,黄留玉²,田晋红^1**,陈泽良^2**

1.西南大学药学院重庆 400716
2.军事医学科学院疾病预防控制所北京 100071

Construction of Brucella Deletion Mutant by Using T Cloning Vector

BAI Yao-xia^1,2,YANG Yi²,WANG Yu-fei²,WANG Tong-kun²,YU Shuang²,CHEN Yan-fen²,FU Si-mei²,HUANG Liu-yu²,TIAN Jin-hong¹,CHENG Ze-liang²

1.College of Pharmaceutical Science, Southwest University, Chongqing 400716,China
2.Institute of Disease Control and Prevention, Academy of Military Medical Science, Beijing 100071,China

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摘要：

目的：建立一种基于T载体快速克隆构建布鲁氏菌突变株的方法，提高布鲁氏菌突变株构建的效率；方法：采用融合PCR的方法，将待缺失基因上下游的同源臂与卡那霉素抗性基因融合起来，构建突变盒，然后将突变盒直接与T载体连接，构建突变载体，将载体转入布鲁氏菌感受态细胞并筛选抗性克隆，进而获得布鲁氏菌的缺失突变株。结果：结合融合PCR和T载体快速克隆，能够在48h之内构建好突变载体，与传统的酶切连接相比，效率高、周期短。结论：基于T载体快速克隆是一种非常高效的构建突变株的方法，为布鲁氏菌突变株的构建提供了一种新方法。

关键词： 布鲁氏菌; T载体; 突变株构建

Abstract:

Control and Prevention, Academy of Military Medical Science, Beijing, 100071） Abstract: Construction of mutant strain is an essential method in pathogenesis researches. In the present study, the Brucella deletion mutant was constructed by using T cloning vector. At first, the homology arms of upstream and downstream of the target gene were fused with kanamycin resistance gene by fusion PCR. Then, the mutant cassette was ligated with T vector, resulted in the mutant plasmid. And the mutant plasmid was transformed into recombination competent cells and recombinants were selected by kanamycin resistance. As the results showed, the mutant construction was convenient and the mutant could be generated by only one round of selection with high efficiency. Therefore, this recombinational cloning strategy provides us a new method to construct the Brucella mutant and would accelerate gene function analysis of Brucella.

Key words: Brucella T vector Mutant construction

收稿日期: 2010-05-04 出版日期: 2010-08-25

基金资助:

国家自然科学基金（30901071）、“十一五”国家科技重大专项子课题（2008ZX1004015）、国家“973”计划（2009CB522602）资助项目

通讯作者: 田晋红;陈泽良 E-mail: zeliangchen@yahoo.com;13896057119@163.com

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	白耀霞
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	于爽
	陈燕芬
	付思美
	黄留玉
	田晋红
	陈泽良

引用本文:

白耀霞杨毅王玉飞王同坤于爽陈燕芬付思美黄留玉田晋红陈泽良. 利用T载体克隆快速构建布鲁氏菌缺失突变株[J]. 中国生物工程杂志, 2010, 30(09): 62-67.

BAI Yao-Xia, YANG Yi, WANG Yu-Fei, WANG Tong-Kun, XU Shuang, CHEN Yan-Fen, FU Sai-Mei, HUANG Liu-Yu, TIAN Jin-Gong, CHEN Ze-Liang. Construction of Brucella Deletion Mutant by Using T Cloning Vector. China Biotechnology, 2010, 30(09): 62-67.

链接本文:

https://manu60.magtech.com.cn/biotech/CN/Q785 或 https://manu60.magtech.com.cn/biotech/CN/Y2010/V30/I09/62

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