Tg(TcrHEL3A9)1Mmd MGI:3512685 Transgene 3A9 anti-HEL|Tg(TcrHEL3A9)Mmd|3A9 TCR Tg(TcrHEL3A9)Mmd transgene http://identifiers.org/mgd/MGI:3512685 3A9 anti-HEL transgene insertion 1, Mark M Davis 3A9 TCR O