Species: Human Expressing host: HEK293 cells Description: Recombinant Human PF-4/CXCL4/SCYB4 Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Glu32-Ser101) of human PF-4/CXCL4/SCYB4 (Accession #NP_002610.1) fused with and a 6His tag at the C-terminus. Tag: C-His Purity: > 97% by SDS-PAGE. Endotoxin: preparation: Lyophilized from a 0.22 m filtered solution of PBS, pH 7.4. Storage Store the lyophilized protein at -20C to -80C for 12 months.
After reconstitution, the protein solution is stable at -20C for 3 months, at 2-8C for up to 1 week.Unopened freeze-dried powder,Store at -20 to -80 °C for twelve months
Redissolution: Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid votex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.Redissolution:Store at -20 to -80 °C,avoid repeated freeze thaw cycles
Background Information : CXCL4, or Platelet factor 4 (PF4), is a small cytokine belonging to the CXC chemokine family. This chemokine is released from the alpha granules of activated platelets in the form of a homotetramer which has high affinity for heparin and is involved in platelet aggregation. CXCL4 is chemotactic for neutrophils and monocytes and also functions as an inhibitor of hematopoiesis, angiogenesis and T-cell function. CXCL4/PF4 is up-regulated in human liver fibrosis and that it plays a nonredundant, functional role in experimental liver fibrosis by mediating stellate cell proliferation, migration, and intrahepatic immune cell recruitment. GeneID 5196 Swiss Prot P02776 Alias: PF-4; CXCL4; SCYB4MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
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