| Primary Identifier | MGI:2183796 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Nbn |
| Transmission | Germline | Strain of Origin | 129S7/SvEvBrd-Hprt1<b-m2> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exons 4 and 5 were replaced with a floxed PGK-neo cassette via homologous recombination resulting in the deletion of the BRCT domain. An 80 kDa protein was expressed from the mutant allele as a result of a start codon originating in the PGK-neo cassette and splicing from intron 5 to exon 6. The mutant protein lacks the FHA and BRCT domains and retains Mre11a-binding activity. |