| Primary Identifier | MGI:4818767 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Ffar4 |
| Transmission | Germline | Strain of Origin | C57BL/6J |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | A genomic fragment extending from nucleotide -5870 to 768 including the promoter region and exon 1 was replaced with a pgk-neo cassette via homologous recombination. Immunohistochemical analysis confirmed the absence of protein expression in taste tissue from homozygous mice. |