| Primary Identifier | MGI:1857460 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Calb1 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A genomic fragment containing the promoter and first exon was replaced with a neomycin selection cassette. Western blot and immunohistochemistry analysis on tissues derived from homozygous mice demonstrated that no detectable protein was produced from this allele. |
