Human TNF Protein, Recombinant


产品货号:PR00069HuP1
   
询价

规格    100ug

产品名称Human TNF Protein, Recombinant
 
纯度≥95 % as determined by SDS-PAGE
 
内毒素/
 
生物活性/
 
序列起止Gly57~L233
 
标签N-His tag
 
Uniprot链接P01375
 
表达系统E.coli
 
种属Human
 
预测 N 端Met
 
预测分子量19.47 kDa
 
缓冲液20mM Tris, 250mM imidazole, 500mM NaCl, pH8.0, containing 10% glycerol.
 
运输方式This Protein is shipped as lyophilized powder at ambient temperature. Upon receipt, store it immediately at the temperature recommended.
 
稳定性 & 储存条件Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.
 
复溶Please refer to COA for detailed information
 
质量验证图:/

别称DIF, TNF-A, TNFSF2, Cachectin, Tumor Necrosis Factor Ligand Superfamily Member 2
 
背景信息TNF-alpha. Tumor necrosis factor alpha (TNF-alpha ), also known as cachectin and TNFSF2, is the prototypic ligand of the TNF superfamily. It is a pleiotropic molecule that plays a central role in inflammation, immune system development, apoptosis, and lipid metabolism (1, 2). Bovine TNF-alpha  consisits of a 35 amino acid (aa) cytoplasmic domain, a 21 aa transmembrane segment, and a 178 aa extracellular domain (ECD) (3). Within the ECD, bovine TNF-alpha  shares 64%-83% sequence identity with canine, cotton rat, equine, feline, human, mouse, porcine, rat, and rhesus TNF-alpha. TNF-alpha  is produced by a wide variety of immune, epithelial, endothelial, and tumor cells (1, 2). TNF-alpha  is assembled intracellularly to form a noncovalently linked homotrimer which is expressed on the cell surface (4). Cell surface TNF-alpha  can induce the lysis of neighboring tumor cells and virus infected cells, and it can generate its own downstream cell signaling following ligation by soluble TNFR I (2, 5). Shedding of membrane bound TNF-alpha  by TACE/ADAM17 releases the bioactive cytokine, a 55 kDa soluble trimer of the TNF-alpha  extracellular domain (6-8). TNF-alpha  binds the ubiquitous 55-60 kDa TNF RI (9, 10) and the hematopoietic cell-restricted 80 kDa TNF RII (11, 12), both of which are also expressed as homotrimers (1, 2, 13). Both type I and type II receptors bind TNF-alpha  with comparable affinity (14), although only TNF RI contains a cytoplasmic death domain which triggers the activation of apoptosis. Soluble forms of both types of receptors are released and can neutralize the biological activity of TNF-alpha  (15).

全称Tumor necrosis factor (TNF)
 
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