| Primary Identifier | MGI:3809665 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ccl1 |
| Transmission | Germline | Strain of Origin | 129/Sv |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A neomycin resistance cassette replaced exon 1 and part of exon 2. Correct targeting was established by Southern blotting. Immunofluorescence staining of inflamed footpads confirmed a lack of gene expression |