| Primary Identifier | MGI:7779982 | Allele Type | Targeted |
| Attribute String | Inserted expressed sequence, Null/knockout | Gene | Il21r |
| Inheritance Mode | Not Specified | Transmission | Germline |
| Strain of Origin | C57BL/6JSmoc | Is Recombinase | false |
| Is Wild Type | false |
| molecularNote | The endogenous mice Il21r gene was completely or partially replaced by human IL21R gene via ESC targeting. |