The line was obtained by microinjection of a transgene composed of cassette containing the mouse 8.5 kb CamkIIa promoter region, a rabbit-beta-globin intron, the CreERT2 cDNA and a SV40 pA cassette. The subline 127.29 was analyzed and cryopreserved. Twelve copies of transgene are inserted on mouse Chr5. (J:82809)