发明名称 |
Method for constructing mutagenesis libraries in situ |
摘要 |
Method and kit for constructing a random mutagenesis library. The method comprises providing a first expression vector comprising a target polynucleotide fragment, providing a pair of Vector-primers that are complementary to the vector portion of the first expression vector, wherein the Vector-primers comprise a second selection marker gene, and wherein the Vector-primers allow PCR amplification of the target polynucleotide; and performing a PCR reaction using the first expression vector as the template with the Vector-primers under error-prone PCR conditions in the presence of a thermostable DNA ligase, generating a second expression vector which comprises the second selection marker gene and a mutated target polynucleotide. |
申请公布号 |
US9416359(B2) |
申请公布日期 |
2016.08.16 |
申请号 |
US201013254859 |
申请日期 |
2010.03.15 |
申请人 |
Shao Weilan;Le Yilin;Pei Jianjun |
发明人 |
Shao Weilan;Le Yilin;Pei Jianjun |
分类号 |
C12N15/10;C12N15/64;C40B40/08;C40B50/06 |
主分类号 |
C12N15/10 |
代理机构 |
|
代理人 |
Li Kening;Canfield Miller |
主权项 |
1. A method of constructing a random mutagenesis library, comprising:
i) providing a first expression vector comprising a target polynucleotide fragment, wherein the first expression vector comprises a vector portion and a target portion, wherein the vector portion comprises a first selection marker gene, and a first region and a second region flanking the first selection marker gene, wherein the target portion comprises a target polynucleotide capable of being expressed; ii) providing a pair of Vector-primers that are complementary to the vector portion of the first expression vector in the first and second regions respectively, wherein the Vector-primers comprise a second selection marker gene, and wherein the Vector-primers allow PCR amplification of the target polynucleotide; and iii) performing a PCR reaction using the first expression vector as the template with the Vector-primers under error-prone PCR conditions in the presence of a thermostable DNA ligase, generating a second expression vector which is circular and comprises the second selection marker gene and a mutated target polynucleotide wherein the second expression vector does not comprise the first selection marker. |
地址 |
Nanjing CN |