Anti-GAD67/GAD1 Antibody Picoband®

Glutamate decarboxylase 1 (brain, 67kDa) (GAD67), also known as GAD1, is a human gene. It is mapped to 2q31.1. 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.

E.coli-derived human GAD67 recombinant protein (Position: N14-D122) . Human GAD67 shares 95% amino acid (aa) sequence identity with both mouse and rat GAD67.

Amino Acid Metabolism, Amino Acids, Autoimmune, Cancer, Immune System Diseases, Immunology, Metabolic Signaling Pathways, Metabolism, Pathways and Processes, Signal Transduction

1. Kelly, C. D.; Edwards, Y.; Johnstone, A. P.; Harfst, E.; Nogradi, A.; Nussey, S. S.; Povey, S.; Carter, N. D. : Nucleotide sequence and chromosomal assignment of a cDNA encoding the large isoform of human glutamate decarboxylase. Ann. Hum. Genet. 56: 255-265, 1992. 2. Bu, D.-F.; Erlander, M. G.; Hitz, B. C.; Tillakaratne, N. J. K.; Kaufman, D. L.; Wagner-McPherson, C. B.; Evans, G. A.; Tobin, A. J. : Two human glutamate decarboxylases, 65-kDa GAD and 67-kDa GAD, are each encoded by a single gene. Proc. Nat. Acad. Sci. 89: 2115-2119, 1992. 3. Entrez Gene: GAD1 glutamate decarboxylase 1 (brain, 67kDa)

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Golgi apparatus, trans-Golgi network membrane; Single-pass type I membrane protein. Cell membrane; Single-pass type I membrane protein. Shuttles between the trans-Golgi network and the cell surface. Propeptide cleavage is a prerequisite for exit of furin molecules out of the endoplasmic reticulum (ER) . A second cleavage within the propeptide occurs in the trans Golgi network (TGN), followed by the release of the propeptide and the activation of furin.