| Primary Identifier | MGI:1857164 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | En2 |
| Inheritance Mode | Recessive | Transmission | Germline |
| Strain of Origin | 129S2/SvPas | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced 1 kb of sequence containing 300 bp of intron and 700 bp of the homeobox exon. |