Suppr超能文献

一种简单高效的DNA化学诱变方法。

A simple and efficient method for chemical mutagenesis of DNA.

作者信息

Kadonaga J T, Knowles J R

出版信息

Nucleic Acids Res. 1985 Mar 11;13(5):1733-45. doi: 10.1093/nar/13.5.1733.

Abstract

A simple and efficient procedure for the generation of random GC to AT transition mutations in a specific DNA segment is described. A restriction fragment is inserted in each orientation into an M13 vector, single-stranded virion DNA from each recombinant phage is treated with methoxylamine, and, after reannealing of the mutagenized strands, a double-stranded restriction fragment is obtained. This methoxylamine-derivatized DNA segment is then joined with linearized M13 RF DNA, competent E. coli is transfected, and mutations are directly identified by sequencing of the phage DNA. Using this technique, single and double nucleotide substitutions were generated at a frequency greater than 50% in a 56-base pair segment of the signal codons of the TEM beta-lactamase.

摘要

本文描述了一种在特定DNA片段中产生随机GC到AT转换突变的简单高效方法。将一个限制性片段以每种方向插入到M13载体中,来自每个重组噬菌体的单链病毒体DNA用甲氧基胺处理,并且在诱变链重新退火后,获得双链限制性片段。然后将这个甲氧基胺衍生化的DNA片段与线性化的M13 RF DNA连接,转染感受态大肠杆菌,并通过对噬菌体DNA进行测序直接鉴定突变。使用该技术,在TEMβ-内酰胺酶信号密码子的56个碱基对片段中,单核苷酸和双核苷酸取代的产生频率大于50%。

相似文献

1
A simple and efficient method for chemical mutagenesis of DNA.一种简单高效的DNA化学诱变方法。
Nucleic Acids Res. 1985 Mar 11;13(5):1733-45. doi: 10.1093/nar/13.5.1733.

引用本文的文献

5
Nucleotide sequence of the Escherichia coli mutH gene.大肠杆菌mutH基因的核苷酸序列。
Nucleic Acids Res. 1987 Apr 10;15(7):3073-84. doi: 10.1093/nar/15.7.3073.

本文引用的文献

1
The chemical and mutagenic specificity of hydroxylamine.羟胺的化学特异性和诱变特异性。
Proc Natl Acad Sci U S A. 1961 Jun 15;47(6):845-55. doi: 10.1073/pnas.47.6.845.
7
New M13 vectors for cloning.用于克隆的新型M13载体。
Methods Enzymol. 1983;101:20-78. doi: 10.1016/0076-6879(83)01005-8.
8
Rapid and efficient cosmid cloning.快速高效的黏粒克隆
Nucleic Acids Res. 1981 Jul 10;9(13):2989-98. doi: 10.1093/nar/9.13.2989.

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验