transgene insertion 21, Jeffrey Robbins MGI:3688748 transgene Transgene O Tg(Myh6-Mylpf*)21Rbns RLC2v(P-)|Tg(Myh6-Mylpf*)21Rbns|TG-RLC(P-) Tg(Myh6-Myl2*)21Rbns http://identifiers.org/mgd/MGI:3688748 RLC2v(P-) TG-RLC(P-)