| Primary Identifier | MGI:3057287 | Allele Type | Spontaneous |
| Gene | Grm1 | Inheritance Mode | Recessive |
| Strain of Origin | B6.129X1-Bax<tm1Sjk>/J | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | This spontaneous mutation was found to be allelic with rcw by complementation testing versus the original mutation. Exon 4 has been duplicated. This results in a frame shift causing 23 missense amino acids beginning at position 396 and a stop codon at position 419. |