| Primary Identifier | MGI:7450929 | Allele Type | Endonuclease-mediated |
| Attribute String | Null/knockout | Gene | C4b |
| Strain of Origin | C57BL/6 | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | Using CRISPR/Cas9-mediated genome editing, exons 1 and 2 of the C4b gene were targeted to generate C4b indel mutants with >83% frameshift indels. |