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Human IL-8 (72 a.a.) Protein, His tag (Animal-Free)

Human IL-8 (72 a.a.) Protein, His tag (Animal-Free)

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Specification

Product name Human IL-8 (72 a.a.) Protein, His tag (Animal-Free)
Sequence MSAKELRCQCIKTYSKPFHPKFIKELRVIESGPHCANTEIIVKLSDGRELCLDPKENWVQRVVEKFLKRAENS with polyhistidine tag at the C-terminus.
Activity Measure by its ability to chemoattract PBMC. The ED₅₀ for this effect is <2 ng/mL.
Protein length The protein has a calculated MW of 9.32 kDa. The protein migrates as 11 kDa under reducing condition (SDS-PAGE analysis).
Preparation method E. coli
Purity >98% as determined by SDS-PAGE.
Alternative Monocyte-Derived Neutrophil Chemotactic Factor (MDNCF), Neutrophil Activating Factor (NAF), CXCL8, C-X-C motif chemokine ligand 8

Product Properties

Formulation The protein was lyophilized from a 0.2 µm filtered solution containing 1X PBS, pH 8.0. If you have any concerns or special requirements, please confirm with us.
Features & Benefits Endotoxin: <0.1 EU per 1 μg of the protein by the LAL method.
Molecular weight 9.32 kDa
Usage notes Always centrifuge tubes before opening. It is recommended to reconstitute the lyophilized Human IL-8 (72 a.a.) Protein, His tag (Animal-Free) using the buffer we provided not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Storage instructions Lyophilized protein should be stored at -20°C for 1 year. Upon reconstitution, store at 2°C to 8°C for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10%FBS, 5%HSA or 5% trehalose solution), protein aliquots should be stored at -20°C or -80°C for 3-6 months. Avoid repeated freeze/thaw cycles.
Shipping The product is shipped with blue ice.
Precautions The product listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.

Additional Information

Background Human IL-8 (aa 28-99) predicts a molecular mass of 8.5 kDa and is the 72 amino acid residue form Ser 28 to Ser 99 of mature human IL-8. This recombinant protein is the major form secreted by macrophages. IL-8 is a chemokine produced by macrophages and other cell types such as epithelial cells, airway smooth muscle cells and endothelial cells.
Alternative Monocyte-Derived Neutrophil Chemotactic Factor (MDNCF), Neutrophil Activating Factor (NAF), CXCL8, C-X-C motif chemokine ligand 8
Accession P10145

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