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Position: Home > Articles > Preparation of GC cloning vector and its cloning efficiency of PCR products Journal of Agricultural University of Hebei 2013,36 (4) 66-69

GC克隆载体的制备及其克隆效率研究

作  者:
李继刚;杨忠祥;张虎;孙希哲
单  位:
河北大学生命科学学院;河北省微生物多样性研究与应用实验室
关键词:
PCR产物;GC克隆;载体;酶切;克隆效率
摘  要:
为了研究GC克隆技术的克隆效率,从商品化T载体出发,构建了一个含有2个XcmI位点的质粒;通过PCR技术引入突变后,经XcmI酶切得到3′端各突出一个C碱基的线性化载体。随后将该线性化载体与Taq酶催化得到的PCR产物进行了连接测试。结果表明:GC克隆效率低于同等条件下的TA克隆,对不同5′端碱基引物没有表现出明显偏好性。该研究为GC克隆技术在分子生物学实验上的应用提供了一定的理论依据。
译  名:
Preparation of GC cloning vector and its cloning efficiency of PCR products
作  者:
LI Ji-gang,YANG Zhong-xiang,ZHANG Hu,SUN Xi-zhe(Key Laboratory of Microbial Diversity Research and Application of Hebei Province,College of Life Sciences,Hebei University,Baoding 071002,China)
关键词:
PCR products;GC cloning;vector;restriction digestion;cloning efficiency
摘  要:
To test the cloning efficiency of GC cloning,a plasmid,which will produce a linear plasmid with a 3′ terminal C-overhang residue at both ends after digestion with Xcm I,was constructed.This GC cloning vector was ligated to PCR products obtained by PCR with Taq DNA polymerase.Bacterial transformation tests showed that GC cloning efficiency was lower than TA cloning.Unlike TA cloning,GC cloning showed no preference for the base type of 5′-terminal of the PCR primer pairs.These results may be helpful in the application of GC cloning in molecular biology experiments.

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