Recombinant Human IL-8 (72a.a.)
Molecular Weight: Approximately 8.4 kDa, a single non-glycosylated polypeptide chain containing 72 amino acids.
Quantity: 5µg/25µg/1000µg
AA Sequence: SAKELRCQCI KTYSKPFHPK FIKELRVIES GPHCANTEII VKLSDGRELC LDPKENWVQR VVEKFLKRAE NS
Purity: > 97 % by SDS-PAGE and HPLC analyses.
Biological Activity: Fully biologically active when compared to standard. The biologically active determined by a chemotaxis bioassay using human peripheral blood neutrophils is in a concentration range of 10-100
ng/ml.
Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation: Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.4.
Endotoxin: Less than 1EU/µg of rHuIL-8, 72a.a. as determined by LAL method.
Reconstitution: 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.
Usage: This material is offered by Shanghai PrimeGene Bio-Tech for research, laboratory or further
evaluation purposes. NOT FOR HUMAN USE.
Human Interleukin-8
Interleukin-8 (IL-8) is encoded by the IL8 gene and produced by macrophages and other cell types such as epithelial cells. It is also synthesized by endothelial cells, which store IL-8 in their storage vesicles. There are many receptors capable to bind IL-8, the most affinity to IL-8 are receptors CXCR1, and CXCR2. As a member of the CXC chemokine family, function of IL-8 is the induction of chemotaxis in its target cells, like neutrophil granulocytes, basophils, and T-cells. IL-8 (72a.a.) has a 5-10-fold higher activity on neutrophil activation, compared to IL-8 (77 a.a.). IL-8 is often associated with inflammation and has been cited as a proinflammatory mediator in gingivitis and psoriasis.
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