Tag1-Cre SM22-Cre http://identifiers.org/mgd/MGI:2450259 SM22-Cre<tg> MGI:2450259 Tg(Tagln-cre)1Her transgene Transgene O SM22-Cre<tg>|Tag1-Cre|Sm22alphaCre|SM22-Cre Sm22alphaCre transgene insertion 1, Joachim Herz