| Primary Identifier | MGI:5645817 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | F13a1 |
| Transmission | Germline | Strain of Origin | 129P2/OlaHsd |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A genomic fragment including all of exon 7 was replaced with a neo cassette via homologous recombination. Northern and western blot analysis confirmed the absence of mRNA and protein expression in homozygous mice. Expression of F13b was reduced to less than 20% of wild-type in homozygous mice. |