| Primary Identifier | MGI:3057332 | Allele Type | Targeted |
| Attribute String | Humanized sequence, Inserted expressed sequence | Gene | Ret |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Human RET9 cDNA and a floxed neo were inserted into exon 1 of the endogenous locus. Mating with mice expressing Cre in the germline excised the neo. RT-PCR showed expression of the mutant allele in brain. |