A suggested positive control for immunohistochemical applications is brain. In Western blot, a doublet at ~65/67 kDa has been observed.
This gene encodes one of several forms of glutamic acid decarboxylase, identified as a major autoantigen in insulin-dependent diabetes. The enzyme encoded is responsible for catalyzing the production of gamma-aminobutyric acid from L-glutamic acid. A pathogenic role for this enzyme has been identified in the human pancreas since it has been identified as an autoantigen and an autoreactive T cell target in insulin-dependent diabetes. This gene may also play a role in the stiff man syndrome. Deficiency in this enzyme has been shown to lead to pyridoxine dependency with seizures. Alternative splicing of this gene results in two products, the predominant 67-kD form and a less-frequent 25-kD form.
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Protein Aliases: 65 kDa glutamic acid decarboxylase; 67 kDa glutamic acid decarboxylase; FLJ45882; GAD-65; GAD-67; GAD1; GAD2; Glutamate decarboxylase 1; Glutamate decarboxylase 1 (brain); glutamate decarboxylase 1 (brain, 67kDa); glutamate decarboxylase 1 variant GAD67NT; Glutamate decarboxylase 2; Glutamate decarboxylase 2 (islet); glutamate decarboxylase 2 (pancreatic islets and brain, 65kDa); Glutamate decarboxylase 65 kDa isoform; Glutamate decarboxylase 67 kDa isoform; GLUTAMATE DECARBOXYLASE, 67 KD ISOFORM (GAD-67) (67 KD GLUTAMIC ACID DECARBOXYLASE); Glutamate decarboxylase-2 (pancreas); glutamic acid decarboxylase; glutamic acid decarboxylase 1; glutamic acid decarboxylase 2; glutamic acid decarboxylase 65
Gene Aliases: 6330404F12Rik; CPSQ1; EP10; GAD; GAD(65); Gad-1; Gad-2; GAD1; GAD2; GAD25; GAD44; GAD65; GAD67; SCP