Hyperactive self-inactivating piggyBac for transposase-enhanced pronuclear microinjection transgenesis

Joel Marh, Zoia Stoytcheva, Johann Urschitz, Atsushi Sugawara, Hideaki Yamashiro, Jesse B. Owens, Ilko Stoytchev, Pawel Pelczar, Ryuzo Yanagimachi, Stefan Moisyadi

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


We have developed a unique method for mouse transgenesis. The transposase-enhanced pronuclear microinjection (PNI) technique described herein uses the hyperactive piggyBac transposase to insert a large transgene into the mouse genome. This procedure increased transgene integration efficiency by fivefold compared with conventional PNI or intracytoplasmic sperm injection-mediated transgenesis. Our data indicate that the transposase-enhanced PNI technique additionally requires fewer embryos to be microinjected than traditional methods to obtain transgenic animals. This transposase-mediated approach is also very efficient for single-cell embryo cytoplasmic injections, offering an easy-to-implement transgenesis method to the scientific community.

Original languageEnglish
Pages (from-to)19184-19189
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number47
Publication statusPublished - 2012 Nov 20


  • Genetically modified
  • Transgene


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