| Primary Identifier | MGI:2674964 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Spmap2 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Sequence encompassing 2 kb of upstream sequence and exons 1 through 4 was replaced with a neo cassette inserted by homologous recombination. Northern blot analysis of testicualr RNA obtained homozygous mutant mice revealed an transcript containing neo but showed no endogenous message. |