An In Vitro Single-Primer Site-Directed Mutagenesis Method for Use in Biotechnology.

作者：Huang, Yanchao; Zhang, Likui^*

来源：Methods Mol Biol, 2017, 1498: 375-383.

DOI：10.1007/978-1-4939-6472-7_26

• Competent Escherichia coli
• DpnI digestion
• Single-mutagenic primer method
• Site-directed mutagenesis
• Thermostable DNA polymerase

Site-directed mutagenesis is a powerful method to introduce mutation(s) into DNA sequences. A number of methods have been developed over the years with a main goal being to create a high number of mutant genes. The single-mutagenic primer method for site-directed mutagenesis is the most direct method that yields mutant genes in about 25-50 % of transformants in a robust, low-cost reaction. The supercompetent XL10-Gold bacteria used in the Stratagene protocol carry a phage, which may be a problem for some applications; however, in our single-mutagenic primer method the supercompetent bacteria are not needed. A thermostable DNA polymerase with high fidelity and processivity, such as Phusion DNA polymerase, is required for our optimized procedure to avoid extra mutation(s) and enhance mutagenic efficiency.

• 出版日期2017