| Primary Identifier | MGI:3037868 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Pappa |
| Transmission | Germline | Strain of Origin | 129 |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neo cassette replaced 1.6 kb of the gene including most of exon 4. RT-PCR confirmed lack of expression and IGFBP4 proteolysis confirmed lack of Pappa activity in homozygous mutants. |