General strategy

  • Isolation and cloning of the gene of interest, including its regulatory sequences
  • Generation of a (expression-competent) DNA-construct or genetically modified ES cells
  • Isolation of oocytes or blastocysts
  • Injection of DNA or genetically modified ES cells and transfer of the injected embryos into a foster mouse
  • Analysis of the offspring, to check for transgenesis, by testing tail-DNA, ear biopsies or blood
  • Analysis of the expression and biological effects of the gene of interest in the transgenic animals


to top