| Primary Identifier | MGI:2137030 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | En1 |
| Transmission | Germline | Strain of Origin | 129S/SvEv-Gpi1<c> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A tau-lacZ reporter gene cassette was inserted into the first exon, replacing sequences encoding the endogenous methionine initiation codon and the first 72 amino acids. Heterozygous mice expressed tau-beta-galactosidase that was indistinguishable from the endogenous expression pattern of En1. |