| Primary Identifier | MGI:3045900 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Chat |
| Transmission | Germline | Strain of Origin | Not Specified |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Chattm1Jrs-carring mice were crossed with transgenic mice expressing cre in the germ line to produce this allele in which exons 3 and 4 were replaced with an frt-flanked neo. Southern blot confirmed excision of the exons. RT-PCR revealed the splicing of exon 2 to exon 5, resulting in a frame shift after the codon for amino acid 22 and a stop codon at amino acid 31. Therefore, the protein products were less than 32 amino acids long, instead of the 641, and lacked the catalytic center. |