| Primary Identifier | MGI:3620058 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Mstn |
| Transmission | Germline | Strain of Origin | 129S7/SvEvBrd-Hprt1<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 3, which encodes the entire active portion of the peptide, was removed via cre mediated recombination. |