| Primary Identifier | MGI:3700206 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Gpr4 |
| Transmission | Germline | Strain of Origin | 129X1/SvJ |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The coding region was replaced by the IRES-GFP and PGK-neo cassette. Absence of transcript was confirmed by RT-PCR. |