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名称
Recombinant Protein A Pro (Alkali-tolerant)
别名
重组蛋白A | 蛋白A | 重组耐碱蛋白A | 重组蛋白A,C端带Cys | 重组耐碱蛋白A Pro
英文别名
Protein A | Staphylococcal Protein A | Staphylococcal Protein A Recombinant | Recombinant Protein A-Cys | rat-PA | spa | SAOUHSC_00069
货号
rp224196-10mg
包装规格
10mg
级别
无动物源
浓度
Monomer ≥90%(SEC-HPLC);Dimer ≤2.0%(SEC-HPLC)
产品介绍
本品为大肠杆菌重组表达的耐碱蛋白A,经层析纯化、冷冻干燥得到的重组耐碱蛋白APro冻干粉。阿拉丁重组耐碱蛋白APro是在天然金黄色葡萄球菌蛋白A的基础上对蛋白质结构进行改造,由4个Fc结合结构域片段串联而成,理论分子量26.4KD。重组耐碱蛋白APro与琼脂糖凝胶键合后可制备用于抗体纯化的亲和填料,可从腹水、血清、细胞培养上清或细胞抽提物中分离和纯化多种哺乳动物不同亚型的抗体或包含抗体Fc片段的基因工程重组蛋白。阿拉丁重组耐碱蛋白APro的C端含有一个半胱氨酸,可增强其同凝胶的定向共价键合。 重组耐碱蛋白 A Pro( rp224196)为重组耐碱蛋白A(rp192268)的升级产品,将不耐碱的氨基酸残基进一步突变 而得到,其耐碱性能进一步提升。重组耐碱蛋白 A Pro 亲和填料和重组蛋白 A 亲和填料相同,都能够耐 受 0.5M NaOH 在位清洗,但重组耐碱蛋白 A Pro 亲和填料拥有更长的使用寿命。 产品优势 1、无动物源性:无动物病毒、无致病物质、无外源因子污染,安全性高。 2、 生产规模:1000L 以上。 3、 合规性:生产设备和生产环境符合相关法规要求,符合 GMP 指导原则。 4、质量文件完整:按客户需求,可提供相关法规支持文件。 产品特性 性状:白色或类白色冻干粉 蛋白含量:应不得低于70.0% 用途 1、生化研究:用于免疫分析和 IgG 的提纯。 2、制备用于抗体纯化的亲和填料:可从腹水、血清、细胞培养上清或细胞抽提物中分离和纯化多种哺乳动物不同亚型的抗体或包含抗体 Fc 片段的基因工程重组蛋白。 推荐使用方法 本品为大肠杆菌重组表达的耐碱蛋白 A Pro,其 C 末端设计有半胱氨酸残基,可以通过其上的巯基与环氧基团进行偶联反应,制备亲和层析填料。基球环氧活化以及蛋白 A 偶联方法需经实验后确定。 运输和储存稳定性 1、运输稳定性:冰袋保温运输,活性稳定。 2、储存稳定性:冻干粉在-15℃及以下条件下至少能稳定存放 24 个月。可用 50mM PBS(pH 7.4)配制为溶液,现配现用;或者存放至-15℃及以下冰箱,避免反复冻融影响蛋白活性。 注意事项与免责声明 1、溶解后尽量马上使用。 2、避免使用强酸、强碱、强氧化剂、高浓度的有机溶剂等易引起蛋白质变性的试剂。 3、本品仅用于研发、生产,不得用人体或临床。
生化机理
Plays a role in the inhibition of the host innate and adaptive immune responses. Possesses five immunoglobulin-binding domains that capture both the fragment crystallizable region (Fc region) and the Fab region (part of Ig that identifies antigen) of immunoglobulins. In turn, Staphylococcus aureus is protected from phagocytic killing via inhibition of Ig Fc region. In addition, the host elicited B-cell response is prevented due to a decrease of antibody-secreting cell proliferation that enter the bone marrow, thereby decreasing long-term antibody production. Inhibits osteogenesis by preventing osteoblast proliferation and expression of alkaline phosphatase, type I collagen, osteopontin and osteocalcin. Acts directly as a pro-inflammatory factor in the lung through its ability to bind and activate tumor necrosis factor alpha receptor 1/TNFRSF1A (By similarity).
来源
重组表达
预测分子量
26.4 kDa
蛋白标签
No tag
SDS-PAGE
26.4 kDa
表达系统
E. coli Accession #: P02976 | E. coli
内毒素水平
<5.0 EU/mg
种属
金黄色葡萄球菌(Staphylococcus aureus)
无动物源
Yes
无载体
Yes
Safety
「No Dangerous Attributes」
Related
「No upstream and downstream information yet」
Technical Documents
「No technical documents」
Articles
「No related articles yet」
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Research chemical 10mg; ≥90%; HPLC; 2. 0%

Research chemical 10mg; ≥90%; HPLC; 2. 0%; supplied for laboratory research, analysis, inspection, and scientific procurement use; specifications: 10mg; ≥90%; HPLC; 2. 0%.

item number:rp224196-10mg
Product model:10mg
level: 10mg; ≥90%; HPLC; 2. 0%
Lead Time:30days
sold 47 Items
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