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RecombinantIL-8(77aa)/CXCL8,Human
Catalog Number: orb1494813
| Catalog Number | orb1494813 |
|---|---|
| Category | Proteins |
| Description | Interleukin-8 is one of the first discovered chemokines and belongs to the CXCL family, in which the first two conserved cysteines are separated by one residue. In vivo, IL-8 exists in two forms: a 77 a.a. protein produced by endothelial cells, and the more active 72 a.a. protein produced by monocytes. The receptors for IL-8 are the seven-helical G-protein coupled receptors CXCR1 and CXCR2, exclusively expressed on neutrophils. The functions of IL-8 are to induce rapid changes in cell morphology, activate integrins, and release the granule contents of neutrophils. Thus, IL-8 can enhance the antimicrobial actions of defense cells.Recombinant human Interleukin-8 (IL-8, 77aa)/CXCL8 produced in E. coli is a single non-glycosylated polypeptide chain containing 77 amino acids. A fully biologically active molecule, rhIL-8(77aa)/CXCL8 has a molecular mass of 8.9 kDa analyzed by reducing SDS-PAGE and is obtained by chromatographic techniques at GenScript. |
| Form/Appearance | Lyophilized after extensive dialysis against PBS. |
| Purity | > 95% as analyzed by SDS-PAGE. |
| MW | 8.9 kDa, observed by reducing SDS-PAGE. |
| Protein Sequence | AVLPRSAKEL RCQCIKTYSK PFHPKFIKEL RVIESGPHCA NTEIIVKLSD GRELCLDPKE NWVQRVVEKF LKRAENS |
| Source | Escherichia coli. |
| Biological Activity | The EC50 value of human IL-8(77aa) on Caˆ2+ mobilization assay in CHO-K1/G15/hCXCR1 cells (human Ga15 and human CXCR1 stably expressed in CHO-K1 cells) is less than 150 ng/ml. |
| Endotoxins | < 0.2 EU/μg, determined by LAL method. |
| Storage | Lyophilized recombinant human Interleukin-8 (IL-8)(77aa)/CXCL8 remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, recombinant human Interleukin-8 (IL-8)(77aa)/CXCL8 should be stable up to 1 week at 4°C or up to 2 months at -20°C. |
| Buffer/Preservatives | Lyophilized after extensive dialysis against PBS. |
| Alternative names | Interleukin-8, IL8, XCL8, monocyte-derived neutrop Read more... |
| Note | For research use only |
| Application notes | Reconstituted in ddH2O or PBS at 100 μg/ml. |
| Expiration Date | 6 months from date of receipt. |
