| 产品编号 |
bs-41227P |
| 英文名称 |
Recombinant human S100-A8/A9 protein, His
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| 中文名称 |
重组人S100-A8/A9蛋白复合物 |
| 别 名 |
60B8Ag; AI323541; B8Ag; BEE11; CAGA; Calgranulin-A; Calprotectin L1L subunit; Calprotectin, included; CFAG; CGLA; Chemotactic cytokine CP-10; CP-10; Cystic fibrosis antigen; L1Ag; Leukocyte L1 complex light chain; MA387; MIF; Migration inhibitory factor-r |
| 理论分子量 |
29.2 kDa |
| 检测分子量 |
33 |
| 性 状 |
Lyophilized or Liquid |
| 浓 度 |
＞0.5 mg/ml |
| 物 种 |
Human |
| 序 列 |
1-93/93 |
| 纯 度 |
>95% as determined by SDS-PAGE |
| 纯化方法 |
AC |
| 内毒素 |
Not analyzed |
| 表达系统 |
E.coli |
| 活性 |
Not tested |
| 标签 |
His |
| 缓 冲 液 |
20mM Tris-HCl (pH8.0). |
| 保存条件 |
Stored at -70℃ or -20℃. 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. |
| 产品介绍 |
S100A8 is a calcium- and zinc-binding protein which plays a prominent role in the regulation of inflammatory processes and immune response. It can induce neutrophil chemotaxis and adhesion. Predominantly found as calprotectin (S100A8/A9) which has a wide plethora of intra- and extracellular functions. The intracellular functions include: facilitating leukocyte arachidonic acid trafficking and metabolism, modulation of the tubulin-dependent cytoskeleton during migration of phagocytes and activation of the neutrophilic NADPH-oxidase. Activates NADPH-oxidase by facilitating the enzyme complex assembly at the cell membrane, transfering arachidonic acid, an essential cofactor, to the enzyme complex and S100A8 contributes to the enzyme assembly by directly binding to NCF2/P67PHOX. The extracellular functions involve proinfammatory, antimicrobial, oxidant-scavenging and apoptosis-inducing activities. Its proinflammatory activity includes recruitment of leukocytes, promotion of cytokine and chemokine production, and regulation of leukocyte adhesion and migration. Acts as an alarmin or a danger associated molecular pattern (DAMP) molecule and stimulates innate immune cells via binding to pattern recognition receptors such as Toll-like receptor 4 (TLR4) and receptor for advanced glycation endproducts (AGER). Binding to TLR4 and AGER activates the MAP-kinase and NF-kappa-B signaling pathways resulting in the amplification of the proinflammatory cascade. Has antimicrobial activity towards bacteria and fungi and exerts its antimicrobial activity probably via chelation of Zn(2+) which is essential for microbial growth. Can induce cell death via autophagy and apoptosis and this occurs through the cross-talk of mitochondria and lysosomes via reactive oxygen species (ROS) and the process involves BNIP3. Can regulate neutrophil number and apoptosis by an anti-apoptotic effect; regulates cell survival via ITGAM/ITGB and TLR4 and a signaling mechanism involving MEK-ERK. Its role as an oxidant scavenger has a protective role in preventing exaggerated tissue damage by scavenging oxidants.
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| 产品图片 |
The purity of the protein is greater than 90% as determined by reducing SDS-PAGE.
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