| Primary Identifier | MGI:1857560 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Pax1 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A PGK-neomycin based targeting vector replaced the 5' region of the gene including exons 1 and 2. Western analysis on homozygous mutant embryos demonstrated an absence of wild-type protein. |