| Primary Identifier | MGI:4133392 | Allele Type | Gene trapped |
| Attribute String | Null/knockout | Gene | Pierce1 |
| Transmission | Germline | Strain of Origin | 129S5/SvEvBrd |
| Is Recombinase | false | Is Wild Type | false |
| Project Collection | Lexicon |
| molecularNote | A gene trap cassette inserted into intron 2. RT-PCR analysis showed that no detectable transcript is expressed from this allele in brain, lung, kidney and testes. |