Pdgfra^tm13Sor

Exons 2 through 4 were replaced with a cDNA of the gene with nucleotide substitutions that result in an amino acid substitution of aspartic acid for valine at position 561 (V561D) preceded by a floxed neo-STOP cassette. This mutation is found in human patients with gastrointestinal stromal tumors and leads to a constitutively active form by disrupting the inhibitory conotacts between the juxtamembrane and kinase domain. Removal of the floxed neo-STOP cassette is necessary to achieve expression. (J:146617)