| Primary Identifier | MGI:3584037 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Rrn3 |
| Transmission | Germline | Strain of Origin | 129/Sv |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | An FRP-flanked neomycin resistance cassette downstream of a loxP site was inserted into intron 11 and a second loxP site was inserted in to intron 14 via homologous recombination. Heterozygous mice were bred with Tg(CMV-cre)1Cgn carriers to excise exons 12-14. RT-PCR analysis indicated that no detectable transcript was expressed from this allele. |