| Primary Identifier | MGI:6810172 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Crh |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A 5' loxP site was inserted approximately 150 bp upstream of the minimal promoter and a 3' loxP and FRT-flanked neomycin resistance gene were inserted approximately 300 bp downstream of the polyadenylation sequence. The neomycin resistance gene was removed via Flp-mediated recombination. |