| Primary Identifier | MGI:3842627 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Btla |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Part of the promoter and all of exon 1 were removed. Gene inactivation was confirmed by an absence of mRNA detected by Northern blot analysis. |