| Primary Identifier | MGI:3784976 | Allele Type | Targeted |
| Attribute String | Null/knockout, Reporter | Gene | Rspo1 |
| Transmission | Germline | Strain of Origin | 129/Sv |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A lacZ gene and neo cassette were inserted into exon 3. The absence of transcript was confirmed by RT-PCR analysis on E13.5 embryo extracts. |