MGI:3715271 Mesp2<MCM> Mesp2<tm13.1(cre/Esr1)Ysa> Mesp2<tm13.1(cre/Esr1*)Ysa> http://identifiers.org/mgd/MGI:3715271 targeted mutation 13.1, Yumiko Saga Inducible|Recombinase