Recombinant Rat GDNF Protein (Baculovirus-Insect, N-His) 别名：glial cell derived neurotrophic factor; 重组大鼠GDNF 蛋白 (Baculovirus-Insect, N-His)
Glial-cell-line-derived neurotrophic factor (GDNF) 是一种属于 GDNF 家族配体 (GFL) 的神经营养因子，可促进多巴胺神经元的存活。GDNF 对哺乳动物神经元表现出多种神经保护作用。GDNF 能够触发受体酪氨酸激酶 RET 磷酸化，其下游效应已被发现可促进神经元健康和存活。GDNF 与其受体的结合触发多个细胞内信号传导途径，这些信号传导途径在促进神经元-神经元和神经元-靶组织相互作用的发育、存活和维持中发挥作用。
化学性质/溶解性/储存
| 性状 | Lyophilized powder |
| 中文名称 | 重组大鼠GDNF 蛋白 (Baculovirus-Insect, N-His)；神经胶质细胞衍生的神经营养因子 |
| 溶解性 | Reconstitute the lyophilized powder in distilled water to a concentration not less than 100 μg/mL. |
| 储存条件 | Stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days and at -20°C for 3 months. |
| 运输方式 | 冰袋运输，根据产品的不同，可能会有相应调整。 |
生物活性
GDNF is an important member of the GDNF family of ligands. GDNF plays a key role in the promotion of the survival of dopaminergic neurons. GDNF is a highly conserved neurotrophic factor. The recombinant form of this protein also promotes the survival and differentiation of dopaminergic neurons in culture, and was able to prevent apoptosis of motor neurons induced by axotomy. GDNF also regulates kidney development and spermatogenesis, and it affects alcohol consumption.
The recombinant rat GDNF consists of 150 amino acids and predicts a molecular mass of 17.1 KDa. A DNA sequence encoding the mature form of rat GDNF (Ser78-Ile211) was expressed, with a polyhistide tag at the N-terminus.
Measured in a cell proliferation assay using SH‑SY5Y human neuroblastoma cells, the ED50 for this effect is typically 10-50 ng/mL in the presence of Recombinant Rat GFR alpha‑1/GDNF R alpha‑1 His Chimera.
Accession: Q07731-1
Apparent Molecular Weight: 20 KDa, under reducing conditions
Endotoxin < 1 EU/µg
Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 7.4.
实验参考
建议您制定动物给药及实验方案时，尽量参考已发表的相关实验文献（溶剂种类及配比众多，简单地溶解目的化合物，并不能解决动物给药依从性、体内生物利用度、组织分布等相关问题，未必能保证目的化合物在动物体内充分发挥生物学效用）。
体内实验的工作液，建议您现用现配，当天使用；如在配制过程中出现沉淀、析出现象，可以通过超声和（或）加热的方式助溶。
切勿一次性将产品全部溶解。
请在下面的计算器中，输入您的动物实验相关数据并点击计算，即可得到该实验的总需药量和工作液终浓度。
例如您给药剂量是10 mg/kg，平均每只动物的体重为20 g，每只动物的给药体积是100 μL，动物数量为20只，则该动物实验的总需药量为4 mg，工作液终浓度为2 mg/mL。
1：鉴于实验过程的损耗，建议您至少多配1-2只动物的量；
2：为该产品最终给药时的浓度。
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