| Primary Identifier | MGI:2448640 | Allele Type | Chemically induced (ENU) |
| Gene | Rs1 | Inheritance Mode | Recessive |
| Strain of Origin | C57BL/6JRn | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | This phenotypic mutant was identified in an ENU mutagenesis screen. A T to C transition at the second base of intron 2 led to two novel splice variants. One mutant transcript contains a 10 bp deletion while the other has a 26 bp deletion, both leading to a frameshift mutation. |