O alphaMHC-MerCreMer MGI:3654323 transgene insertion 1, James K Liao Tg(Myh6-cre/Esr1*)1Liao Tg(Myh6-cre/Esr1)1Liao|alphaMHC-MerCreMer Transgene Tg(Myh6-cre/Esr1)1Liao http://identifiers.org/mgd/MGI:3654323 transgene