| Primary Identifier | MGI:4421031 | Allele Type | Targeted |
| Attribute String | Modified regulatory region, Null/knockout | Gene | Rr2 |
| Transmission | Germline | Strain of Origin | 129S6/SvEvTac |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Ultra-conserved nucleotide sequence 329 (uc329), in an intron of Them7, was replace by a loxP site flanked neomycin selection cassette. The neo cassette was subsequently removed by transient cre expression in ES cells. |
