Human CCL21 Protein, Recombinant


产品货号:PR00833HuP1
   
询价

规格:100ug

产品名称Human CCL21 Protein, Recombinant
 
纯度≥95 % as determined by SDS-PAGE
 
内毒素/
 
生物活性/
 
序列起止Ser24~Pro134
 
标签C-His tag
 
Uniprot链接Q6ICR7
 
表达系统E.coli
 
种属Human
 
预测 N 端Met
 
预测分子量/
 
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
 
别称CCL21, 6Ckine, CKb9, ECL, SCYA21, TCA4, ECL, Chemokine(C-C-Motif)Ligand 21, Beta Chemokine Exodus-2, Efficient Chemoattractant For Lymphocytes
 
背景信息CCL21/6Ckine. CCL21, also known as 6Ckine, TCA-4, SLC, Exodus-2, and A21, is a 12 kDa homeostatic chemokine that plays an important role in adaptive immune responses and inflammation (1). Unlike other CC chemokines, human CCL21 has a 37 amino acid (aa) C-terminal extension which mediates its attachment to carbohydrate structures and extracellular matrix components (2, 3). Mature human CCL21 shares 71% and 66% aa sequence identity with mouse and rat CCL21, respectively (4‑6). Both human and mouse CCL21 signal through the chemokine receptor CCR7, while mouse CCL21 additionally can signal through CXCR3 (7). CCL21 is constitutively presented on initial lymphatic vessels, high endothelial venules (HEV), and lymph node dendritic cells (DC) (8‑10). Immobilized CCL21 promotes the docking of DC to lymphatic vessels and the retention of T cells by lymph node DC, resulting in T cell priming for activation (8, 9). DC interaction with the anchored chemokine can induce CCL21 cleavage and release of an 8 kDa fragment that lacks the C-terminal extension (10). During chronic inflammation or tissue damage, CCL21 is up‑regulated on local vascular endothelial cells, macrophages, T cells, and neurons (11‑14). In these settings, it promotes fibrosis, inflammatory cytokine production, and neuropathic pain (12‑14). The soluble chemokine is elevated in rheumatoid arthritis synovial fluid and in the serum of coronary artery disease patients (11, 13). CCL21 has been shown to exert either angiogenic or angiostatic effects (11, 15, 16). These effects, in combination with the ability of CCL21 to attract immune suppressor cells (Treg and MDSC) to a tumor site can have positive or negative effects on tumor progression (16, 17).
 
全称C-C motif chemokine 21 (CCL21)
 
说明书待上传