targeted mutation 1, Edward E Schmidt ROSA<nT-nG> Gt(ROSA)26Sor<tm1(ACTB-tdTomato*,-EGFP*)Ees> MGI:5504463 Reporter|Conditional ready Gt(ROSA)26Sor<tm1(CAG-tdTomato*,-EGFP*)Ees> http://identifiers.org/mgd/MGI:5504463