Compositions, and products comprising a MutS homolog which binds to a mismatched region of a duplex DNA molecule in the presence of ADP are provided, as are methods of binding MutS homologs to mismatched DNA in the presence of ADP. The use of MutL homolog derivatives in combination with MutS homologs is also included. Nonhuman mammals which are nullizygous for both Msh2 and p53 are also provided, as are methods of making and using the same.
提供了包含 MutS 同源物的组合物和产品,该 MutS 同源物在
ADP 存在的情况下与双链 DNA 分子的错配区结合,还提供了在
ADP 存在的情况下将 MutS 同源物与错配 DNA 结合的方法。还包括将 MutL 同源物衍
生物与 MutS 同源物结合使用。还提供了 Msh2 和 p53 均为无效的非人类哺乳动物,以及制造和使用这些动物的方法。