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Endomorphin 2 是一种高亲和力和选择性的 μ-阿片受体激动剂,对 kappa3 结合位点具有合理的亲和力 ,Ki 为 20 到 30 nM 之间。
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Endomorphin 2 是一种高亲和力和选择性的 μ-阿片受体激动剂,对 kappa3 结合位点具有合理的亲和力 ,Ki 为 20 到 30 nM 之间。
规格 | 价格 | 库存 | 数量 |
---|---|---|---|
1 mg | ¥ 382 | 现货 | |
2 mg | ¥ 548 | 现货 | |
5 mg | ¥ 725 | 现货 | |
10 mg | ¥ 1,190 | 现货 | |
25 mg | ¥ 2,580 | 现货 | |
50 mg | ¥ 3,230 | 现货 | |
100 mg | ¥ 4,730 | 现货 |
产品描述 | Endomorphins-2 (EM-2) could decrease both the frequency and amplitude of the sEPSC of the motoneurons in lamina IX, which was reversed by the MOR antagonist CTOP. EM-2-IR fibers originated from primary afferent fibers form symmetric synaptic connections with motoneurons innervating skeletal muscles of the lower limbs in lamina IX of the spinal ventral horn and EM-2 might exert inhibitory effects on the activities of these motoneurons through both presynaptic and postsynaptic mechanisms. |
靶点活性 | μ opioid receptor:20-30 nM(Ki) |
体内活性 | 经过3天的存活后,所有通过WGA-HRP逆向标记的老鼠均通过注射过量的硫酸戊巴比妥(100 mg/kg)深度麻醉,并接着用100 ml 0.01 M PBS (pH 7.4)和500 ml含4%甲醛和0.01%戊二醛在0.1 M PB (pH 7.4)的固定液灌注。随后,取出脊髓并将其在含4%甲醛的0.1 M PB (pH 7.4)中于4°C保存2-4小时。挑选完整切片进行TMR和Endomorphin-2(EM-2)或MOR双重染色。切片首先用10%正常山羊血清在0.01 M PBS (pH 7.4)中封闭,然后在室温下与豚鼠抗TMR(1:500)和兔抗EM-2(1:200)或兔抗MOR(1:500)抗体孵育24小时。洗涤后,在室温下用以下混合物孵育8小时:(1)亚硝酸生物素化驴抗兔IgG(1:500)和Alexa594标记的驴抗豚鼠IgG(1:500),稀释于PBS-NDS(用于TMR和EM-2染色);(2)亚硝酸生物素化驴抗兔IgG(1:500)和Alexa488标记的驴抗豚鼠IgG(1:500),稀释于PBS-NDS(用于TMR和MOR染色)。随后,切片在含0.5%Triton X-100的0.01 M PBS (PBS-X)中,使用FITC-Avidin(1:1,000)(对于EM-2染色)或Alexa594-Avidin(1:1,000)(对于MOR染色)孵育3小时。最终,在0.01 M PBS中清洗后,切片被安置于干净的玻璃载玻片上,自然干燥后,用含50% (v/v)甘油和2.5% (w/v)三乙烯二胺的0.05 M PBS混合物覆盖。使用激光扫描共聚焦显微镜捕获图像。 |
别名 | 内吗啡肽 2 |
分子量 | 571.67 |
分子式 | C32H37N5O5 |
CAS No. | 141801-26-5 |
存储 | keep away from moisture | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice. | ||||||||||||||||||||
溶解度信息 | DMSO: 10 mM | ||||||||||||||||||||
溶液配制表 | |||||||||||||||||||||
DMSO
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