CMV-Cre-ER<T> RERTn Transgene CMV-cre CMV-cre|RERTn|CMV-Cre-ER<T>|Cre-ER<T>|Tg(CMV-cre/ESR1)1Ipc Tg(CMV-cre/ERT)1Ipc transgene insertion 1, I Pierre Chambon transgene Cre-ER<T> O MGI:2446419 Tg(CMV-cre/ESR1)1Ipc http://identifiers.org/mgd/MGI:2446419