Methods of performing homologous recombination based modification of nucleic acids in recombination deficient cells and use of the modified nucleic acid products thereof

摘要

A simple method for modifying genes in a recombination deficient host cell is disclosed. Such modifications include generating insertion, deletions, substitutions, and/or point mutations at any chosen site in the independent origin based cloning vector. The modified gene can be contained in an independent origin based cloning vector that is used to introduce a modified heterologous gene into a cell. Such a modified vector may be used in the production of a germline transmitted transgenic animal, or in gene targeting protocols in eukaryotic cells.