| Primary Identifier | MGI:3772576 | Allele Type | Targeted |
| Attribute String | Conditional ready, Inserted expressed sequence | Gene | Gt(ROSA)26Sor |
| Transmission | Germline | Strain of Origin | B6.Cg-Thy1<a> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A targeting vector was designed with a loxP-flanked STOP cassette upstream of the open reading frame of the simian Diphtheria Toxin Receptor (DTR; from simian hbEGF cDNA (base pair 56-682)). The loxP-flanked region contains two SV40 polyA signals, an frt-flanked neomycin resistance gene, and a transcriptional STOP cassette. This construct was inserted into the Gt(ROSA)26Sor locus via electroporation of C57BL/6-derived Bruce4 ES embryonic stem (ES) cells. Widespread expression of DTR is blocked by an upstream loxP-flanked STOP sequence. When bred to Cre recombinase-expressing mice, the STOP sequence is deleted in tissues where Cre is present, permitting DTR expression. Cells expressing DTR are rendered susceptible to ablation following Diphtheria toxin administration. |
