| Primary Identifier | MGI:5888903 | Allele Type | Targeted |
| Attribute String | Conditional ready | Gene | Usp21 |
| Transmission | Germline | Strain of Origin | C57BL/6N-A<tm1Brd> |
| Is Recombinase | false | Is Wild Type | false |
| Project Collection | EUCOMM |
| molecularNote | The L1L2_Bact_P cassette was inserted at position 171111927 of Chromosome 1 upstream of exon 3 (Build GRCm39). The cassette is composed of an FRT site followed by lacZ sequence and a loxP site. This first loxP site is followed by a neomycin resistance gene under the control of the human beta-actin promoter, SV40 polyA, a second FRT site and a second loxP site. A third loxP site is inserted downstream of exon 6 at position 171113776. Exons 3-6 are thus flanked by loxP sites. A "conditional ready" (floxed) allele was created by flp recombinase expression in mice carrying this allele to remove the lacZ sequence and neo selection cassette, leaving loxP sites flanking exons 3-6. |
