Tg(Igh-3/Igh-6VD93)1241Ust g2b-mumem|Tg(Igh)Bri128|Tg(g2b/mumem)3Storb Tg(Igh)Bri128 Tg(g2b/mumem)3Storb transgene insertion 1241 Ursula Storb transgene MGI:3793438 O http://identifiers.org/mgd/MGI:3793438 g2b-mumem Transgene