| Primary Identifier | MGI:2152423 | Allele Type | Targeted |
| Attribute String | Conditional ready, No functional change | Gene | Igf1 |
| Transmission | Germline | Strain of Origin | 129 |
| Is Recombinase | false | Is Wild Type | false |
| description | ES cells = 129/Sv |
| molecularNote | A neomycin cassette and loxP sites were inserted flanking exon 4. The introduction of these mutations had no effect on the normal function of the gene. |
