| Primary Identifier | MGI:3578225 | Allele Type | Targeted |
| Attribute String | Not Specified | Gene | Gsk3a |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A targeting vector was designed to replace serine 21, located on exon 1, with alanine (S21A). A floxed neomycin resistance cassette was inserted at the 3' end of exon 1. The neomycin cassette was subsequently excised from properly targeted ES cells by transient transfection with a cre expressing plasmid. |