RESEARCH ARTICLE

Improvement of megaprimer method for site-directed mutagenesis and its application to phytase

  • Haiqiang LU 1 ,
  • Hongwei YU 1 ,
  • Runfang GUO 1 ,
  • Yingmin JIA , 1,2
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  • 1. Food Science and Technology College Agricultural University of Hebei, Baoding 071000, China
  • 2. Hebei University of Science and Technology, Shijiazhuang 05000,China

Received date: 27 Sep 2008

Accepted date: 09 Oct 2008

Published date: 05 Mar 2009

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg

Abstract

Site-directed mutagenesis is used extensively for probing gene function. In this paper we describe an improved megaprimer method to the site-directed mutagenesis of phytase from Aspergillus niger, which allowed the mutations to be performed more efficiently in less time than other traditional methods. Three rounds of PCR and two pairs of primers were required in this method, and additionally, the restriction enzyme Dpn I was used for the elimination of template instead of the gel purification in this process. The entire procedure was performed in one tube. Moreover, this method was easier for obtaining large mutant genes than other methods. We successfully carried out the site-directed mutagenesis of phytase by adopting this method.

Cite this article

Haiqiang LU , Hongwei YU , Runfang GUO , Yingmin JIA . Improvement of megaprimer method for site-directed mutagenesis and its application to phytase[J]. Frontiers of Agriculture in China, 2009 , 3(1) : 43 -46 . DOI: 10.1007/s11703-009-0010-5

Acknowledgements

This work was a part of the research program financed by the Key Science and Technology Project of the 11th 5-year-plan of Hebei Province, China (No. 06220106D).
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