| Primary Identifier | MGI:4415347 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Icos |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Tyrosine 181 in exon 3 was mutated to phenylalanine by a single A-T transversion. A diagnostic EcoRI site was also introduced into exon 3 as well as a floxed neo cassette. |