Identification of pseudo attP sites for phage C31 integrase in bovine genome

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• 作者：Qing-wen Ma ; Hai-qing Sheng ; Jing-bin Yan ; Shan Cheng ; Ying Huang ; Yanru Chen-Tsai ; Zhao-rui Ren ; Shu-zhen Huang and Yi-tao Zeng
• 关键词： ; //www.sciencedirect.com/scidirimg/entities/3d5.gif"" alt=""phi"" border=0>C31 integrase ; Pseudo attP sites ; Site-specific integration ; Bovine
• 刊名：Biochemical and Biophysical Research Communications
• 出版年：2006
• 出版时间：7 July 2006
• 年：2006
• 卷：345
• 期：3
• 页码：984-988
• 全文大小：151 K

文摘

Streptomyces phage C31 integrase was found to mediate site-specific integration of foreign genes at pseudo attP sites of genomes in human, mouse, rat, and Drosophila. This paper reports that C31 integrase can also mediate homologous recombination between attB and pseudo attP sites in bovine cells and foreign gene integration was increased at least 2-fold in bovine fibroblasts or Madin–Darby bovine kidney (MDBK) cells. Two intrinsic pseudo attP sites named BpsF1 and BpsM1 located in the inter-gene regions on chromosome 28 and 19, respectively, were identified in bovine genome. These pseudo attP sites shared similar characteristics with those from other species as previously described. Our study demonstrated that the C31 integrase system provides a new potential for genetic engineering of the bovine genome and might be beneficial for the research on ruminant.