| Primary Identifier | MGI:2156049 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Nbn |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced 2kb of gene sequence spanning the promoter, exon 1 (including the translation initiation codon), and 700 bp of intron 1. |