| Primary Identifier | MGI:2183573 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Nhlh1 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The coding sequence, which is entirely contained in exons 1 and 2, was replaced with a neomycin selection cassette. Transcript was determined to be absent in homozygous mutant mice via Northern blot analysis. |