| Primary Identifier | MGI:2178844 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Jak2 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The function of this gene was disrupted by replacement of exon 2 with a neomycin resistance gene via homologous recombination. Homozygous mutant embryos were detected by PCR analysis at stage E10-E12. Western blot and immunoprecipitation yielded negative results in E10-E12 homozygous mutant embryos. |