| Primary Identifier | MGI:3046841 | Allele Type | Targeted |
| Attribute String | Modified regulatory region, Null/knockout | Gene | Otx2 |
| Transmission | Germline | Strain of Origin | (C57BL/6NCrlj x CBA/JNCrlj)F1 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The anterior neuroectoderm (AN) enhancer region (559 bp) was replaced with a floxed neomycin-resistance gene. Southern blot confirmed recombination and quantitative RT-PCR confirmed a reduction in gene expression in mutant embryos. |