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Gulo gene locus, a new gene editing locus for mammalian cells

Transgene technology is valuable and helpful in many fields, including basic medical and biological research, biotechnology, and therapy. Recent advances in targeting technology accelerate the production of transgenic plants and animals and the application for gene therapy. To develop the technology, we examine the utility as the new safe harbor locus, l‐gulono‐γ‐lactone oxidase (Gulo) locus in human and mice. We performed experiments in vitro and in vivo knockout and knockin mouse and cell lines to validate their applicability using these loci. The Gulo locus might be good candidates for safe harbor loci for transgenic research.