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核突触蛋白-α(N端)抗体
包装与价格:
产品名称 Alpha Synuclein Recombinant Rabbit mAb 产品介绍
商品属性 产品介绍Alpha-synuclein is a member of the synuclein family, which also includes beta- and gamma-synuclein. Synucleins are abundantly expressed in the brain and alpha- and beta-synuclein inhibit phospholipase D2 selectively. SNCA may serve to integrate presynaptic signaling and membrane trafficking. Defects in SNCA have been implicated in the pathogenesis of Parkinson disease. SNCA peptides are a major component of amyloid plaques in the brains of patients with Alzheimer's disease. Alternatively spliced transcripts encoding different isoforms have been identified for this gene. [provided by RefSeq, Feb 2016].
商品详情 英文名称Alpha Synuclein Recombinant Rabbit mAb 中文名称核突触蛋白-α(N端)抗体 别 名SNCA; SYUA_HUMAN; alpha synuclein; alpha-synuclein, isoform NACP140; alpha SYN; MGC105443; MGC110988; MGC127560; MGC64356; NACP; Non A beta component of AD amyloid; Non A4 component of amyloid precursor; Non-A-beta component of alzheimers disease amyloid, precursor of; Non-A beta component of AD amyloid; Non-A4 component of amyloid precursor; PARK 1; PARK 4; PARK1; PARK4; Parkinson disease(autosomal dominant, Lewy body) 4; Parkinson disease familial 1; Syn; Snca synuclein, alpha(non A4 component of amyloid precursor); Synuclein alpha; Synuclein, alpha(non A4 component of amyloid precursor); Synuclein-α; Synuclein α. 研究领域细胞生物 神经生物学 细胞凋亡 Alzheimer's 抗体来源Rabbit 克隆类型Recombinant 克 隆 号3H12 交叉反应Human 产品应用WB=1:500-2000,IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500,Flow-Cyt=1:50-200,ICC/IF=1:100-500 not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量14 kDa 检测分子量 细胞定位细胞核 细胞浆 细胞膜 性 状Liquid 浓 度1mg/ml 免 疫 原A synthesized peptide derived from human alpha Synuclein: 1-140 亚 型IgG 纯化方法affinity purified by Protein A 缓 冲 液0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. 保存条件Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles. 注意事项This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMedPubMed 靶点与功能 α-突触核蛋白(α-Synuclein,SNCA)是突触前膜表达的小分子蛋白(分子量约14kDa),N端(1-60位氨基酸)的核心功能与研究价值包括: 病理机制枢纽:N端含7个保守的KTKEGV重复序列,是α-螺旋结构形成的关键区域,该区域突变(如A53T、E46K)或异常磷酸化(Ser129)会导致蛋白构象从可溶性单体转变为β-折叠纤维,最终形成路易小体(PD的典型病理特征); 神经退行性疾病标志物:PD患者脑内黑质区α-Synuclein N端抗体染色阳性细胞数较健康人群高3-5倍,且与运动症状严重程度正相关(UPDRS评分R²=0.78); 突触功能调控:通过与突触小泡膜结合(依赖N端的膜锚定序列),参与多巴胺释放和突触可塑性调节,其异常表达会导致突触传递障碍。 实验操作关键要点 WB检测病理样本: 样本处理:PD患者脑组织用含2% SDS的RIPA裂解液(添加1mM PMSF和蛋白酶抑制剂)冰上裂解30分钟,12000g离心15分钟取上清; 电泳条件:15% SDS-PAGE凝胶(Tris-Tricine系统),恒压80V浓缩胶、120V分离胶,电泳70分钟(小分子蛋白分离优化); 结果判读:14kDa单体条带灰度值在PD组较对照组降低40%,同时出现50-200kDa聚集条带(提示蛋白纤维化)。 IHC-P路易小体定位: 抗原修复:柠檬酸盐缓冲液(pH6.0)微波修复20分钟(石蜡切片),黑质多巴胺能神经元胞质内可见棕黄色圆形路易小体(直径5-20μm); 阴性对照:α-Synuclein敲除小鼠脑组织(无信号); 联合染色:与泛素抗体共染,路易小体呈α-Synuclein⁺/泛素⁺双阳性(PD病理金标准)。 IF蛋白聚集动态观察: 转染A53T突变型α-Synuclein的SH-SY5Y细胞,抗体1:200稀释(4℃孵育过夜),Alexa Fluor 488标记二抗,激光共聚焦可见胞质内绿色颗粒状聚集物(诱导6天后聚集率达60%)。 公司正在出售的产品
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