abstract |
The present invention can remove the alpha 1,3-galactosyltransferase gene by homologous recombination and simultaneously target the DAF (decay accelerating factor) gene to the position of the alpha 1,3-galactosyltransferase gene. It relates to an alpha 1,3-galactosyltransferase gene targeting vector, a cell into which the vector is introduced, a fertilized egg nuclearly transplanted into the cell, a transgenic animal knocked out by the vector, and a method for producing the same. |