| Primary Identifier | MGI:2383986 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Folr1 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 2 was disrupted by the insertion of a neomycin selection cassette. The absence of normal transcript in homozygous mutant mice was determined via an RNAse protection assay. |