中枢神经特异性蛋白S100β (S100β)酶联免疫吸附试验试剂盒
| 产品描述: | 本试剂盒采用双抗夹心法 ELISA 技术,专为科研场景设计,可定量检测样本中 S100β 蛋白浓度,检测范围为 10-1000pg/mL,包含预包被 S100β 特异性捕获抗体的微孔板、HRP 标记检测抗体及配套试剂,特异性强(与 S100 家族其他成员交叉反应率<1%),适用于脑脊液、脑组织匀浆、星形胶质细胞培养上清等样本。S100β 作为 S100 钙结合蛋白家族成员,是星形胶质细胞活化的关键标志物,其表达异常与神经炎症模型、脑损伤模型的胶质细胞应激反应相关;机制上,其通过 EF-hand 结构域结合钙离子后构象改变,与靶蛋白(如 GFAP、tau)相互作用,调控星形胶质细胞增殖及细胞外基质重塑,本试剂盒可捕捉其浓度变化以解析神经胶质活化机制。分子特征体现为含两个 EF-hand 钙结合结构域(N 端低亲和力、C 端高亲和力)及二聚化界面,钙结合后构象变化暴露靶蛋白结合位点;生物学意义在于作为 “神经胶质应激传感器”,参与脑损伤后胶质瘢痕形成、神经炎症因子释放及神经元 - 胶质细胞信号交流。实用性上,支持神经炎症模型中与星形胶质细胞活化标志物的关联研究、脑损伤模型胶质应激解析及化合物对其分泌的干预评估,为神经胶质功能机制研究提供可靠工具。 本品仅用于科研,不用于临床诊断,产品具体参数及操作步骤详见产品说明书。 |
| 别名: | S100 钙结合蛋白 β 链、S100B 中枢神经特异性蛋白S100β |
| 缩写: | S100β |
| Uniprot No: | P04271 |
| 种属: | Mus musculus (Mouse) |
| 样本类型: | serum, plasma, tissue homogenates, cell culture supernates |
| 检测范围: | 10-1000pg/mL |
| 反应时间: | 1-5h |
| 样本体积: | 50-100ul |
| 检测波长: | 450 nm |
| 测定原理: | quantitative |
| 测定方法: | Sandwich |
| 货期: | 3-5 working days |
| 本试剂盒所含 材料: | A micro ELISA plat 8×12 |
| Two vials lyophilized standarde | |
| Concentrated Enzyme-Labeled Detection Antibody (100 x concentrate) 1 x 120 μl | |
| Universal Diluent 2 x 20 ml | |
| Wash Buffer (20 x concentrate) 2 x 10 ml | |
| TMB Substrate 1 x 10 ml | |
| Stop Solution 1 x 60 ml | |
| Four plate sealing film (For 96 wells) | |
| An instruction manua | |
| 精密度: | ntra-assay Precision (Precision within an assay): CV%<8% |
| Three samples of known concentration were tested twenty times on one plate to assess. | |
| Inter-assay Precision (Precision between assays): CV%<10% | |
| Three samples of known concentration were tested in twenty assays to assess. |
| 线性度: | To assess the linearity of the assay, samples were spiked with high concentrations of human ACEⅠ in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay. | ||
| Sample | Serum(n=4) | ||
| 1:200 | Average % | 98 | |
| Range % | 95-106 | ||
| 1:400 | Average % | 96 | |
| Range % | 91-98 | ||
| 1:800 | Average % | 101 | |
| Range % | 89-101 | ||
| 1:1600 | Average % | 87 | |
| Range % | 82-96 | ||
| 回收率: | The recovery of human ACEⅠ spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section. | ||
| Sample Type | Average % Recovery | Range | |
| Serum (n=5) | 90 | 85-98 | |
| EDTA plasma (n=4) | 123 | 105-108 | |
| 标准曲线: | 这些标准曲线仅用于演示。应为每组分析的样品生成标准曲线。 | ||
| 靶点详情: | S100β 是 S100 家族的代表性钙结合蛋白,主要由中枢神经系统星形胶质细胞分泌,少量存在于施万细胞等。以同源二聚体形式存在,每个亚基含两个 EF-hand 钙结合结构域(N 端 EF-hand 含 14 个氨基酸,C 端 EF-hand 含 12 个氨基酸)。C 端结构域与钙的高亲和力结合是其构象激活的关键,二聚化界面介导与靶蛋白的特异性相互作用,是其实现钙信号转导功能的分子基础。在科研模型中,其通过钙依赖的构象变化调控细胞功能,是解析神经胶质活化与神经损伤修复机制的关键分子靶点 |
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