alphaGSU-cre O transgene alphaGSU-cre|TgN(Cga-cre)<S3Sac>|S3 transgene insertion 3, Sally A Camper MGI:2180056 Transgene http://identifiers.org/mgd/MGI:2180056 S3 TgN(Cga-cre)<S3Sac> Tg(Cga-cre)3Sac