| Primary Identifier | MGI:2180670 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ctla4 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The insertion of neomycin selection cassette under the control of a PGK promoter disrupted exon 3. |