| Primary Identifier | MGI:5805889 | Allele Type | Targeted |
| Attribute String | Conditional ready | Gene | Top1 |
| Transmission | Germline | Strain of Origin | C57BL/6N |
| Is Recombinase | false | Is Wild Type | false |
| Project Collection | KOMP-CSD |
| molecularNote | The L1L2_gt1 cassette was inserted at position 160511599 of Chromosome 2 upstream of the critical exon(s) (Build GRCm39). The cassette is composed of an FRT flanked lacZ/neomycin sequence followed by a loxP site. An additional loxP site is inserted downstream of the targeted exon(s) at position 160512356. A "conditional ready" (floxed) allele was created by flp recombinase expression in mice, removing the lacZ sequences and neomycin selection cassette. The critical exon(s) is/are remain flanked by loxP sites. |