This strain was generated by electroporation method: introduction of Il2rg gene-targeting vector (PKG promoter-HSV TK, loxp Tk2 promoter-Neor loxp) into ES cells of Wistar rat(Crlj:Wistar)
This strain shows severe combined immunodeficiency (SCID) caused by a 636-bp deletion between Exon7 and Intron8 in the Il2rg gene and knock-in of neomycin resistance gene. This strain can grow normally under SPF condition.