Isl2<tm3.1(Mnx1-Lhx3)Slp> http://identifiers.org/mgd/MGI:3767806 targeted mutation 3.1, Samuel L Pfaff Inserted expressed sequence Lhx3 ki MGI:3767806 TgH Lhx3<ON> TgH Isl2<HB9:Lhx3>