| 产品编号 | bs-102402P |
| 英文名称 | Recombinant Human GAD1/GAD67 Protein, N-His |
| 中文名称 | |
| 别 名 | Glutamate decarboxylase 1; GAD1; GAD-67; Glutamate decarboxylase 67 kDa isoform; GAD67; GAD; 67 kDa glutamic acid decarboxylase |
| 克 隆 号 | |
| 理论分子量 | 27.48 kDa |
| 性 状 | Lyophilized |
| 纯 度 | >90% as determined by SDS-PAGE. |
| 缓 冲 液 | Lyophilized from a solution in PBS pH 7.4, 0.02% NLS, 1mM EDTA, 4% Trehalose, 1% Mannitol. |
| 保存条件 | Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt. |
| 注意事项 | This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |
| 产品介绍 |
Glutamic Acid Decarboxylase (GAD) catalyzes the conversion of L glutamate to g-aminobutyric acid (GABA), the principal inhibitory neurotransmitter in the brain, and a putative paracrine signal molecule in pancreatic islets. GAD has a restricted tissue distribution. It is highly expressed in the cytoplasm of GABAergic neurons in the central nervous system (CNS) and pancreatic beta cells. It is also present in other non-neuronal tissues such as testis, oviduct and ovary. GAD is also transiently expressed in non-GABAergic cells of the embryonic and adult nervous system, suggesting its involvement in development and plasticity.
GAD exists as two isoforms, GAD65 and GAD67 (molecular masses of 65 and 67 kD, respectively) that are encoded by two different genes. GAD65 is an ampiphilic, membraneanchored protein, (585 amino acid residues) and is encoded on human chromosome 10. GAD67 is a cytoplasmic protein (594 amino acid residues) and is encoded on chromosome 2. There is 64% amino acid identity between the two isoforms, with the highest diversity located at the N terminus, which in GAD65 is required for targeting the enzyme to GABA-containing secretory vesicles. The two isoforms appear to have distinct intraneuronal distribution in the brain. GAD65 has been identified as an autoantigen in insulindependent diabetes mellitus (IDDM) and stiff-man syndrome (SMS), IDDM is an autoimmune disease that results from T cell mediated destruction of pancreatic insulin-secreting beta cells. Islet-reactive T cells and antibodies primarily to GAD65 (also named beta cell autoantigen) can be detected in peripheral blood of 80% of recent-onset IDD patients and in pre-diabetic high-risk subjects before onset of clinical symptoms. This suggests that GAD may be an important marker in the early stages of the disease. Also, autoantibodies to GAD65 and GAD67 are detected in animal models of IDDM, including the non-obese diabetes (NOD) mouse. In the NOD mouse, T cell reactivity is initially restricted to the C terminal regions of GAD65, but later spreads to other parts of GAD65. Stiff-man syndrome (SMS), a rare disorder of the CNS, is characterized by progressive rigidity of the body musculature with painful spasms, due to impairment of the GABAergic neurotransmission. SWISS: Q99259 Gene ID: 2571 GAD67谷氨酸脱羧酶-67 是用于I II型糖尿病研究的很重要的蛋白。GAD67的大多数表位位于蛋白中部或C末端1／3蛋白，与GAD65有高度的同源性。 |
| 1、抗体溶解方法 | |
| 2、抗体修复方式 | |
| 3、常用试剂的配制 | |
| 4、免疫组化操作步骤 | |
| 5、免疫组化问题解答 | |
| 6、Western Blotting 操作步骤 | |
| 7、Western Blotting 问题解答 | |
| 8、关于肽链的设计 | |
| 9、多肽的溶解与保存 | |
| 10、酶标抗体效价测定程序 | |
