期刊
PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS
卷 36, 期 11, 页码 1490-1494出版社
CHINESE ACAD SCIENCES, INST BIOPHYSICS
DOI: 10.3724/SP.J.1206.2009.00139
关键词
PCR; mutagenesis; megaprimer
资金
- Shenzhen Bureau of Science, Technology and Information [041201005]
A novel PCR-based mutagenesis method was reported, in which there is no need to purify megaprimers or design a special flanking primer. This method used one mutagenic primer and two sequencing primers (T-m <= 58 degrees C) as flanking primers. After first round PCR, 12.5 mu l first PCR production was directly added into 50 mu l second PCR system as template and megaprimer, and 10 rounds of asymmetrical PCR at high temperature of annealing (68 degrees C) was to add in initiation of second PCR. This additional step greatly has increased the efficiency of mutagenesis via 600 bp or 800 bp long megaprimer. The results demonstrated that this method can achieve high fidelity, 97%similar to 98% efficiency, high yield.
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