| Primary Identifier | MGI:1857138 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Btk |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A genomic fragment containing exons 13 and 14 was replaced with a neomycin resistance cassette. These sequences encode the beginning of the kinase domain. |