Glutamate Decarboxylase 2 (GAD2) is one of several forms of glutamic acid decarboxylase, identified as a main autoantigen in type II diabetes. The GAD2 enzyme is responsible for catalyzing the production of gamma-aminobutyric acid from L-glutamic acid. A pathogenic role for the GAD2 enzyme has been characterized in the human pancreas since it has been identified as an autoantibody and an autoreactive T cell target in type II diabetes. GAD2 gene may also have a role in the stiff man syndrome. In addition, GAD2 catalyzes the production of GABA.
Recombinant Human GAD2 produced in SF9 is a glycosylated, polypeptide chain having a calculated molecular mass of 64 kDa.
GAD2 is expressed with a 6xHis tag at N-terminus and purified by proprietary chromatographic techniques.
GAD2 protein solution is supplied in 16mM HEPES buffer pH-7.5, 250mM NaCl, 0.016mM Pyridoxal-5’-Phosphate, 0.16% Triton x-100 and 20% glycerol.
Avoid multiple freeze-thaw cycles.
2. Standard ELISA test (checker-board analysis of positive/negative sera panels).