transgene insertion 1, Mikio Hoshino Tg(Atoh1-cre)1Mhos MGI:3849077 O transgene Tg-Atoh1-Cre|Atoh1-Cre Tg-Atoh1-Cre Atoh1-Cre Transgene http://identifiers.org/mgd/MGI:3849077