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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
2-8度
- 保质期:
1年
- 英文名:
Spectrin alpha
- 库存:
999
- 供应商:
上海淳麦
- 规格:
/5ug/20ug/1mg
产品英文名称:
Recombinant Spectrin-alpha
英文简称:
Spectrin alpha
中文名称:
重组人血影蛋白α
背景资料:
Erythrocyte spectrin is the main component of the red cell membrane skeleton responsible for the shape and physical properties of red cells. SPTA1 is a member of the alpha-spectrin gene family. Spectrin is composed of 2 subunits a and b (280 and 246 kDa respectively). The human erithroid a-spectrin (2418 amino acids) consists of 22 repeating segments of about 106 amino acids in length. SPTA1 forms weaker tetramer interactions than non-erythrocytic alpha spectrin, which may increase the plasma membrane elasticity and deformability of red blood cells. This protein was demonstrated to be a specific substrate for ubiquitination in vitro and in vivo. The main ubiquitination site on human a-spectrin was identified in the lysine 27 of the repeating segment 17 by site directed mutagenesis. Cell-frRecombinant fusion protein: Glutathione-S-Transferase (GST) and a fragment of human a-spectrin (from Lysine 1601 to Leucine 1818) containing repeat 17 and the ubiquitination target lysine 27. The total molecular weight of the fusion protein is 52.4 kDa. experiments using radiolabeled, biotinylated or native ubiquitin and cellular lysates from rabbit retyculocytes, human erythrocytes or k562 cells, showed that only monoubiquitination occurs at this site. Mutations in the SPTA1 gene result in a variety of hereditary red blood cell disorders, such as elliptocytosis type 2, pyropoikilocytosis, and spherocytic hemolytic anemia.
产品描述:
Recombinant fusion protein: Glutathione-S-Transferase (GST) and a fragment of human a-spectrin (from Lysine 1601 to Leucine 1818) containing repeat 17 and the ubiquitination target lysine 27. The total molecular weight of the fusion protein is 52.4 kDa.
来源宿主:
大肠杆菌中重组表达
序列:
溶解建议:
Sterile Filtered clear solution. The protein (1.7mg/ml) contains 50mM Tris buffer pH-8 and 10mM glutathione.
保存建议:
GST-alpha Spectrin although stable at 4℃ for 1 week, should be stored desiccated below -18℃. Please prevent freeze-thaw cycles.
其他简介:
ProSpec是一家全球著名细胞因子蛋白及相关抗体生产和研发品牌。ProSpec的生产和研发工厂位于以色列,专注于蛋白(重组及合成)生产研发,其独有的细菌和哺乳动物表达和蛋白折叠技术使其能在17年内成长为国际一流的科研级蛋白供应商。目前ProSpec可以提供细胞因子,生长因子,激素,信号蛋白,病毒抗原等近800种重组蛋白和100多种抗体,是世界上提供蛋白品种最多的公司之一,领先的生产工艺和规模使其可以提供毫克到克级蛋白,价格优于同类公司。绝大部分产品是天然成熟型蛋白,而不含有标签蛋白。考虑到大部分研究者希望能更灵活地配制蛋白溶液,ProSpec-Tany绝大部分产品没有添加保护剂或盐,这就对工艺提出了更高的要求。同时,ProSpec-Tany绝大部分产品为冻干粉,因此易于运输和保存。
上海淳麦生物为ProSpec国内代理销售经销商,详细的产品信息请和我们联系:免费热线:4006815880 微信电话 13770640776
Recombinant Spectrin-alpha
英文简称:
Spectrin alpha
中文名称:
重组人血影蛋白α
背景资料:
Erythrocyte spectrin is the main component of the red cell membrane skeleton responsible for the shape and physical properties of red cells. SPTA1 is a member of the alpha-spectrin gene family. Spectrin is composed of 2 subunits a and b (280 and 246 kDa respectively). The human erithroid a-spectrin (2418 amino acids) consists of 22 repeating segments of about 106 amino acids in length. SPTA1 forms weaker tetramer interactions than non-erythrocytic alpha spectrin, which may increase the plasma membrane elasticity and deformability of red blood cells. This protein was demonstrated to be a specific substrate for ubiquitination in vitro and in vivo. The main ubiquitination site on human a-spectrin was identified in the lysine 27 of the repeating segment 17 by site directed mutagenesis. Cell-frRecombinant fusion protein: Glutathione-S-Transferase (GST) and a fragment of human a-spectrin (from Lysine 1601 to Leucine 1818) containing repeat 17 and the ubiquitination target lysine 27. The total molecular weight of the fusion protein is 52.4 kDa. experiments using radiolabeled, biotinylated or native ubiquitin and cellular lysates from rabbit retyculocytes, human erythrocytes or k562 cells, showed that only monoubiquitination occurs at this site. Mutations in the SPTA1 gene result in a variety of hereditary red blood cell disorders, such as elliptocytosis type 2, pyropoikilocytosis, and spherocytic hemolytic anemia.
产品描述:
Recombinant fusion protein: Glutathione-S-Transferase (GST) and a fragment of human a-spectrin (from Lysine 1601 to Leucine 1818) containing repeat 17 and the ubiquitination target lysine 27. The total molecular weight of the fusion protein is 52.4 kDa.
来源宿主:
大肠杆菌中重组表达
序列:
溶解建议:
Sterile Filtered clear solution. The protein (1.7mg/ml) contains 50mM Tris buffer pH-8 and 10mM glutathione.
保存建议:
GST-alpha Spectrin although stable at 4℃ for 1 week, should be stored desiccated below -18℃. Please prevent freeze-thaw cycles.
其他简介:
ProSpec是一家全球著名细胞因子蛋白及相关抗体生产和研发品牌。ProSpec的生产和研发工厂位于以色列,专注于蛋白(重组及合成)生产研发,其独有的细菌和哺乳动物表达和蛋白折叠技术使其能在17年内成长为国际一流的科研级蛋白供应商。目前ProSpec可以提供细胞因子,生长因子,激素,信号蛋白,病毒抗原等近800种重组蛋白和100多种抗体,是世界上提供蛋白品种最多的公司之一,领先的生产工艺和规模使其可以提供毫克到克级蛋白,价格优于同类公司。绝大部分产品是天然成熟型蛋白,而不含有标签蛋白。考虑到大部分研究者希望能更灵活地配制蛋白溶液,ProSpec-Tany绝大部分产品没有添加保护剂或盐,这就对工艺提出了更高的要求。同时,ProSpec-Tany绝大部分产品为冻干粉,因此易于运输和保存。
上海淳麦生物为ProSpec国内代理销售经销商,详细的产品信息请和我们联系:免费热线:4006815880 微信电话 13770640776
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文献和实验相关实验
存在于突触前末梢和神经元核内的蛋白质,有 α、β 和 γ 等类型。α 突触核蛋白与帕金森病等疾病有关。
血影蛋白 spectrin 存在于哺乳类动物红细胞膜的内面(细胞质侧)。是类似肌球蛋白的膜的外在性蛋白之一种。是膜里侧结构蛋白质(参见细胞膜里侧结构)之一,除起支持双层脂质外,还有保持红细胞外形的作用,占里侧结构蛋白之 60— 70%。用低浓度盐溶液抽提可从膜游离出来。在 37℃下抽提,则得到化学性、结构性都很相似的分子量 24万的α -亚单位〔 1带、构成红细胞的蛋白质多以于十二烷基硫酸钠存在下的电泳带的号数来称呼。参见红细胞膜(表)〕以及分子量 22万的β -亚单位( 2带)所组成
又称收缩蛋白,是红细胞膜骨架的主要成份,但不是红细胞膜蛋白的成份,约占膜提取蛋白的30%。血影蛋白属红细胞的膜下蛋白,这种蛋白是一种长的、可伸缩的纤维状蛋白,长约100 nm,由两条相似的亚基∶β亚基(相对分子质量220kDa)和α亚基(相对分子质量200kDa)构成。两个亚基链呈现反向平行排列, 扭曲成麻花状,形成异二聚体, 两个异二聚体头-头连接成200nm长的四聚体。5个或6个四聚体的尾端一起连接于短的肌动蛋白纤维并通过非共价键与外带4.1蛋白结合,而带4.1 蛋白又通过非共价
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重组人血影蛋白α
¥700 - 1500









