Tg(Thy1-APP)3Somm transgene O Tg(Thy1-APPK670N;M671L) MGI:2448181 APP 23 Tg(Thy1APP)23Sdz TgAPP23|Tg(Thy1-APPK670N;M671L)|Tg(Thy1APP)23Sdz|APP 23|APP23 Transgene transgene insertion 3, Bernd Sommer http://identifiers.org/mgd/MGI:2448181 TgAPP23 APP23