| Primary Identifier | MGI:2386535 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Polb |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Single loxP sites were left flanking exon 1 and 2 kb of upstream sequence including the promoter after a neomycin selection cassette was excised via the in vitro expression of cre recombinase. |