| Primary Identifier | MGI:3526899 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Sim1 |
| Transmission | Germline | Strain of Origin | 129X1/SvJ |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Part of exon 1, including the translation start site and the first 17 amino acids encoding the basic domain were deleted upon cre mediated excision of a floxed sequence encompassing the ATG and a neo inserted into intron 1. |