TRE-KLF4|TRE-KLF4<32831> TRE-KLF4<32831> MGI:3717761 transgene O TRE-KLF4 Tg(tetO-KLF4)32831Rup http://identifiers.org/mgd/MGI:3717761 transgene insertion 32831, J Michael Ruppert Transgene