| 货号 (SKU) | 包装规格 | 是否现货 | 价格 | 数量 |
|---|---|---|---|---|
| S487830-25mg |
25mg |
现货  |
| |
| S487830-100mg |
100mg |
现货 |
|
| 英文名称 | SM(PEG)24 (PEGylated, long-chain SMCC crosslinker) |
|---|---|
| 储存温度 | -20°C储存,充氩,干燥 |
| 运输条件 | 超低温冰袋运输 |
| 备注 | 这种产品对湿气很敏感。小瓶包装在带有干燥剂的可再密封袋中，以减少湿气接触。冷藏后，打开前将小瓶平衡至室温，以减少小瓶内的冷凝。制备新的溶液。不建议储存原液。使用后，将小瓶放回可重新密封的袋子中。封闭袋子，在推荐的温度下储存产品。 |
| 产品介绍 |
SM（PEG）n NHS-和马来酰亚胺活化的PEG化合物用于蛋白质和其他分子中的伯胺（NH 2）和巯基（SH）之间的交联。产品提供了一整套化合物，每种化合物具有相同的异双功能结构（NHS-PEGn-马来酰亚胺），但离散的乙二醇单元（n = 2,4,6,8,12或24）的数量不同。N-羟基琥珀酰亚胺酯（NHS）基团在pH 7-9下与赖氨酸和N-末端氨基能够发生有效的特异性反应，形成稳定的酰胺键。马来酰亚胺基团在pH 6.5-7.5下与还原型巯基反应，形成稳定的硫醚键 应用 SM(PEG)24 可作为交联剂用于：使用high mass MALDI-MS技术研究甘油醛-3-磷酸脱氢酶 (GAPDH) 和核糖核酸酶的化学交联。制备蛋白G-脂质体纳米囊泡，作为检测牛奶样品中庆大霉素的传感器。偶联过氧化氢酶和链霉亲和素，有助于用ELISA法检测极低浓度的分析物。 SM(PEG)n NHS- and maleimide-activated PEG compounds for crosslinking between primary amines (NH2) and sulfhydryl (SH) groups in proteins and other molecules. A complete set of compounds are offered, each having the same heterobifunctional structure (NHS-PEGn-Maleimide) but differing in the number of discrete ethylene glycol units ( n = 2, 4, 6, 8, 12 or 24). The N-hydroxysuccinimide ester (NHS) group reacts specifically and efficiently with lysine and N-terminal amino groups at pH 7-9 to form stable amide bonds. The maleimide group reacts with reduced sulfhydryls at pH 6.5-7.5 to form stable thioether bondsSM(PEG)24 can be used as a crosslinker in:The study of chemical cross-linking of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and RNAses using the high-mass MALDI-MS technique.Preparation of protein G-liposomal nanovesicles applicable as sensors in the detection of gentamycin in the milk sample.Conjugation of catalase to streptavidin, which is helpful in the detection of analytes at very low concentrations using ELISA technique. |
| 敏感性 | 对湿度敏感 |
|---|
¥7,438.90
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