| Primary Identifier | MGI:2158305 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Bcl2 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin selection cassette replaced most of the coding sequences of exon 2. Western blot analysis of spleen and thymus lysates derived from homozygous mice demonstrated that no detectable protein is produced from this allele. |