| Primary Identifier | MGI:4354143 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Gucy1a1 |
| Transmission | Germline | Strain of Origin | (129X1/SvJ x 129S1/Sv)F1-Kitl<+> |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | Exon 6 of Gucy1a3 gene which codes for a conserved portion of the catalytic domain was flanked by a loxP and a loxP-neo-loxP cassette. The exon 6 and neo cassette was removed in ES cells by transient cre expression leaving a single loxP in place. Northern blot and RT-PCR confirmed excision of exon 6 in the transcript; however, immunoblot revealed a smaller mutant 59-kDa protein in homozygous mice. Mutant protein was determined to be inactive, thus it is functional null allele. |