| Primary Identifier | MGI:2179233 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Polm |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 7-9 were replaced with a neomycin resistance gene via homologous recombination resulting in truncation of exons 6 and 10 and loss of most of the polX domain. RT-PCR of spleen B cells from homozygous mutant animals failed to detect gene expression. |