Human S100A8 Baculovirus-Insect cells Overexpression Lysate

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Human S100A8 Baculovirus-Insect cells Overexpression Lysate: 产品信息

产品描述
This Human S100A8 overexpression lysate was created in Baculovirus-Insect cells and intented for use as a Western blot (WB) positive control. Purification of S100A8 protein (Cat: 11138-H08B) from the overexpression lysate was verified.
表达宿主
Baculovirus-Insect cells
种属
Human
蛋白构建信息
A DNA sequence encoding the human S100A8 (NP_002955.2) (Met 1-Glu 93) was expressed, fused with a polyhistidine tag at the C-terminus.
分子量
The recombinant human S100A8 consists of 103 amino acids and predicts a molecular mass of 12.2 kDa. It migrates as an approximately 14.6 kDa band in SDS-PAGE under reducing conditions.

Human S100A8 Baculovirus-Insect cells Overexpression Lysate: 使用指南

制备方法
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
裂解缓冲液
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
使用建议
1.  Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube. 2.  Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
缓冲液
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
稳定性 & 储存条件
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
应用
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Human S100A8 Baculovirus-Insect cells Overexpression Lysate: 别称

Human 60B8AG Overexpression Lysate; Human CAGA Overexpression Lysate; Human CFAG Overexpression Lysate; Human CGLA Overexpression Lysate; Human CP-10 Overexpression Lysate; Human L1Ag Overexpression Lysate; Human MA387 Overexpression Lysate; Human MIF Overexpression Lysate; Human MRP-8 Overexpression Lysate; Human MRP8 Overexpression Lysate; Human NIF Overexpression Lysate; Human P8 Overexpression Lysate

S100A8 背景信息

S100A8 is a member of the S100 protein family containing 2EF-hand calcium-binding motifs. S100 proteins are involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. Altered expression of S100A8 protein is associated with various diseases and cancers. S100A8 may have an immunoregulatory role by contributing to the regulation of fetal-maternal interactions. It may play a protective role and its absence may allow infiltration by maternal cells, a process eventually manifesting as resorption. The heterodimeric S100 protein complex S100A8/A9 which has been shown to be involved in inflammatory and neoplastic disorders. The complex can induce cell proliferation, or apoptosis, inflammation, collagen synthesis, and cell migration. S100A8/A9 has emerged as important pro-inflammatory mediator in acute and chronic inflammation. More recently, increased S100A8 and S100A9 levels were also detected in various human cancers, presenting abundant expression in neoplastic tumor cells as well as infiltrating immune cells. On the one hand, S100A8/A9 is a powerful apoptotic agent produced by immune cells, making it a very fascinating tool in the battle against cancer. It spears the risk to induce auto-immune response and may serve as a lead compound for cancer-selective therapeutics. In contrast, S100A8/A9 expression in cancer cells has also been associated with tumor development, cancer invasion or metastasis. Altogether, its expression and potential cytokine-like function in inflammation and cancer suggest that S100A8/A9 may play a key role in inflammation-associated cancer.
全称
S100 calcium binding protein A8
参考文献
  • Passey RJ, et al. (1999) S100A8: emerging functions and regulation. J Leukoc Biol. 66(4): 549-56.
  • Gebhardt C, et al. (2006) S100A8 and S100A9 in inflammation and cancer. Biochem Pharmacol. 72(11): 1622-31.
  • Halayko AJ, et al. (2009) S100A8/A9: a mediator of severe asthma pathogenesis and morbidity? Can J Physiol Pharmacol. 87(10): 743-55.
  • Ghavami S, et al. (2009) S100A8/A9: a Janus-faced molecule in cancer therapy and tumorgenesis. Eur J Pharmacol. 625(1-3): 73-83.
  • Ha YS, et al. (2010) mRNA Expression of S100A8 as a Prognostic Marker for Progression of Non-Muscle-Invasive Bladder Cancer. Korean J Urol. 51(1): 15-20.
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