| Primary Identifier | MGI:3053090 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Vip |
| Transmission | Germline | Strain of Origin | 129/Sv |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance gene was inserted in reverse orientation into exon 4. PCR confirmed recombination in mutant mice. Immunohistochemistry confirmed the loss of protein in homozygotes. |