| Primary Identifier | MGI:3761605 | Allele Type | Spontaneous |
| Gene | Sh2d1a | Inheritance Mode | Recessive |
| Strain of Origin | MRL-Fas<lpr> | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | An adenyl nucleotide insertion occurred within the 1st exon of the gene at codon 21, causing a frameshift mutation. Western analysis confirmed there was no expression of the wild-type protein. |