產(chǎn)品編號 | Ys-0362R |
英文名稱 | Protein A |
中文名稱 | 重組金黃色葡萄球菌蛋白A抗體 |
別 名 | Immunoglobulin G binding protein A; Staphylococcal protein A; SPA; gG-binding protein A; SPA_STAA8. |
抗體來源 | Rabbit |
克隆類型 | Polyclonal |
產(chǎn)品應用 | WB=1:500-2000 ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 IF=1:100-500 (石蠟切片需做抗原修復) not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. |
理論分子量 | 40-60kDa |
細胞定位 | 分泌型蛋白 |
性 狀 | Liquid |
濃 度 | 1mg/ml |
免 疫 原 | Recombinant protein A: full length |
亞 型 | IgG |
純化方法 | affinity purified by Protein A |
緩 沖 液 | 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. |
保存條件 | Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. |
注意事項 | This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |
PubMed | PubMed |
產(chǎn)品介紹 | Protein A is a 40-60 kDa surface protein originally found in the cell wall of the bacteria Staphylococcus aureus (SPA). SPA binds proteins from many of mammalian species, most notably IgGs, and helps inhibit phagocytic engulfment and acts as an immunological disguise via this type of interaction, thus the bacteria will disrupts opsonization and phagocytosis. SPA is known to bind with Fc region of immunoglobulins preferentially through interaction with the VH3 variable region of the heavy chain. SPA has been shown to bind with high affinity to human IgG1 and IgG2 as well as mouse IgG2a and IgG2b, whereas bind with moderate affinity to human IgM, IgA and IgE as well as mouse IgG3 and IgG1. SPA is often produced in E. coli and is practically coupled to other molecules such as enzymes, biotin, radioactive iodine for use in immunology and other biological research. SPA is also immobilized onto solid supports such as agarose beads for total IgG purifying or interest protein or protein complex identifying in immunoprecipitation studies. Subcellular Location: Secreted; cell wall. |
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