| Primary Identifier | MGI:2182644 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Fkbp1b |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 3, which encodes binding sites for Ryr2, FK506, and calcineurin, was replaced with a PGK-neo cassette via homologous recombination. Gene expression was absent in hearts from homozygous mutant animals as demonstrated by RT-PCR analysis. |