| Primary Identifier | MGI:1857145 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Cd40lg |
| Transmission | Germline | Strain of Origin | 129S2/SvPas |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 3 and 4 were replaced with a neomycin cassette. Homozygous mutant animals fail to express functional protein on the cell surface. |