| Primary Identifier | MGI:5796191 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Vsir |
| Transmission | Germline | Strain of Origin | (C57BL/6NTac x 129S6/SvEvTac)F1 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A loxP site was inserted upstream of exon 2. An FRT- and loxP-site was inserted downstream of exon 3. Flp-mediated recombination removed the selection cassette. Cre-mediated recombination removed exon 2 and 3. |