mouse strain Neurog3{tm2(EGFP)Ggr} mouse strain A mouse strain in which the targeted gene, Neurogenin 3 (NCBI Gene ID: 11925), has been modified (allele type: Other) to targeted mutation 2 (MGI ID: Neurog3{tm2(EGFP)Ggr). A targeting construct was designed to insert an IRES-EGFP and a floxed puro downstream of the coding sequence. Crossing with mice expressing Cre in the germ line excised the puromycin resistance gene. Homozygous mice express Ngn3 protein, do not develop diabetes and behave like wild-types. Ngn3-positive cells are labeled with EGFP and can be purified by FACS. Neurog3{tm2(EGFP)Ggr} Person: Mark A. Magnuson, Jill Lindner, Jean-Philippe Cartailler Vanderbilt University Medical Center