MGI:3614340 transgene insertion Db-1, William Muller http://identifiers.org/mgd/MGI:3614340 Tg(MMTV-PyVT*Y315F*Y322F)Db-1Mul MMTV-PyVmT Y315/322F MMTV/MT-Y315/322F Inserted expressed sequence Tg(MMTV-PyVT*Y315F,Y322F)Db-1Mul