Transgene Mx1-Cre O transgene insertion 1, University of Cologne syntenic MxCre Tg(Mx1-cre)1Cgn Mx-Cre 31 Mx1-Cre|Mx1cre|Mx-Cre 31|MxCre|Mx-Cre MGI:2176072 Mx1cre transgene Mx-Cre http://identifiers.org/mgd/MGI:2176072