| Primary Identifier | MGI:5706728 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Opn1sw |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin cassette flanked by one loxP site in intron 4 and a second loxP site in intron 1 were inserted via homologous recombination. Recombinase activities removed exons 2-4 and neo cassette. |