Transgene http://identifiers.org/mgd/MGI:3845814 transgene MGI:3845814 MCK-PGC-1a MCK-PGC-1a tg Tg(Ckm-Ppargc1a)31Brsp O transgene insertion 31, Bruce M Spiegelman MCK-PGC-1a|MCK-PGC-1a tg