| Primary Identifier | MGI:7608095 | Allele Type | Endonuclease-mediated |
| Attribute String | Null/knockout | Gene | Or55b4 |
| Strain of Origin | C57BL/6J | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | CRISPR/cas9 mediated recombination using guide RNAs targeting exon 2 created a 268 bp deletion spanning positions 161-428. |