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產品詳情
  • 產品名稱:重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白

  • 產品型號:rHuENA-78, 5-78 a.a./CXCL5
  • 產品廠商:KALANG
  • 產品文檔:
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簡單介紹:
重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白與其它公司提供的重組蛋白不同,rHuENA-78, 5-78 a.a./CXCL5蛋白產品為采用CFS的無細胞麥胚蛋白合成系統表達出來的重組蛋白,可表達出對細胞有毒性、易被蛋白酶降解的蛋白;并獲得具有良好的可溶性,并有翻譯后修飾、從而部分具有功能的蛋白.同時獨有的全自動蛋白純化技術則簡便高效,將蛋白純化過程中對蛋白的損傷降低到*小程度.重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白(全長序列)產品可用于Western Blot驗證、抗體制備、蛋白檢測、ELISA等試驗中.
詳情介紹:

重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白

Synonyms ENA-78 (5-78), CXCL5 (5-78), Neutrophil Activating Peptide ENA-78, Small-inducible cytokine B5
Species Human
Accession P42830
GeneID 6374
Source Escherichia coli.
Molecular Weight 重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白Approximately 8.1 kDa, a single non-glycosylated polypeptide chain containing 74 amino acids.
Quantity 5μg/20μg/1000μg
AA Sequence AAVLRELRCV CLQTTQGVHP KMISNLQVFA IGPQCSKVEV VASLKNGKEI CLDPEAPFLK KVIQKILDGG NKEN
Purity > 97 % by SDS-PAGE and HPLC analyses.
Biological Activity 重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human peripheral blood neutrophils is in a concentration of 5.0-10 ng/ml.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation Lyophilized from a 0.2 μm filtered concentrated solution in 20 mM PB, pH 7.4, 50 mM NaCl.
Endotoxin Less than 1 EU/μg of rHuENA-78, 5-78a.a./CXCL5 as determined by LAL method.
Reconstitution 重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
重組人上皮中性粒細胞活化肽-78,5-78 a.a./CXCL5蛋白
Reference 1. Chang MS, McNinch J, Basu R, et al. 1994. J Biol Chem. 269:25277-82.
2. O'Donovan N, Galvin M, Morgan JG. 1999. Cytogenet Cell Genet. 84:39-42.
3. Persson T, Monsef N, Andersson P, et al. 2003. Clin Exp Allergy. 33:531-7.
4. Wuyts A, Govaerts C, Struyf S, et al. 1999. Eur J Biochem. 260:421-9.
Background CXCL5 is a small cytokine also known as epithelial-derived neutrophil-activating peptide 78 (ENA-78). The gene for human CXCL5 is encoded by four exons which belong to CXCL5 gene located on human chromosome 4. The protein is produced following stimulation of cells with the inflammatory cytokines interleukin-1 or tumor necrosis factor-alpha. In vitro, ENA-78 (8-78) and ENA-78 (9-78) show a threefold higher chemotactic activity for neutrophil granulocytes. They are produced by proteolytic cleavage after secretion from peripheral blood monocytes. Recombinant human CXCL5 (5 - 78 a.a.) contains 74 amino acids and it is a single non-glycosylated polypeptide chain. Human CXCL5 shares 57 % amino acid sequence identity with mouse and rat CXCL5.

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