| Primary Identifier | MGI:4462398 | Allele Type | Targeted |
| Attribute String | Modified isoform(s), Null/knockout | Gene | Whrn |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Most of exon 1 was replaced with a neo cassette. The absence of long form protein expression was confirmed by western blot analysis on retina extracts. The short form is expressed. |
