| Primary Identifier | MGI:3046425 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Id3 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The sequences encoding the helix-loop-helix dimerization domain was replaced by a neo cassette via homologous recombination. Northern and western blot analysis confirmed the absence of transcript and protein, respectively, in homozygous mice. |
