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CXCL4 Protein, Human, Recombinant
(Synonyms: SCYB4, platelet factor 4, PF-4, CXCL4) Copy Product InfoSynonyms: SCYB4, platelet factor 4, PF-4, CXCL4
Catalog No. TMPY-00741 Copy Product Info
Platelet factor 4 (PF4), also known as chemokine (C-X-C motif) ligand 4 (CXCL4), is a small cytokine belonging to the CXC chemokine family. CXCL4/PF4 is released from the alpha-granules of activated platelets and binds with high affinity to heparin. Its major physiologic role appears to be neutralization of heparin-like molecules on the endothelial surface of blood vessels, thereby inhibiting local antithrombin III activity and promoting coagulation. As a strong chemoattractant for neutrophils and fibroblasts, CXCL4/PF4 probably has a role in inflammation and wound repair. This protein is released during platelet aggregation. CXCL4/PF4 neutralizes the anticoagulant effect of heparin because it binds more strongly to heparin than to the chondroitin-4-sulfate chains of the carrier molecule. CXCL4 is chemotactic for neutrophils and monocytes. It inhibits endothelial cell proliferation, the short form is a more potent inhibitor than the longer form. 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.
| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 μg | $79 | 7-10 days | 7-10 days | |
| 10 μg | $129 | 7-10 days | 7-10 days | |
| 20 μg | $212 | 7-10 days | 7-10 days | |
| 50 μg | $390 | 7-10 days | 7-10 days | |
| 100 μg | $716 | 7-10 days | 7-10 days | |
| 200 μg | $1,080 | 7-10 days | 7-10 days | |
| 500 μg | $2,280 | 7-10 days | 7-10 days | |
| 1 mg | $4,660 | 7-10 days | 7-10 days |
For In stock only · Estimated delivery: USA Stock (1-2 days) Global Stock (5-7 days)
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For research use only—not for human use. No sales to individuals. Use as intended only.
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Product Introduction
Bioactivity
Chemical Properties
Storage & Solubility Information
| Description | Platelet factor 4 (PF4), also known as chemokine (C-X-C motif) ligand 4 (CXCL4), is a small cytokine belonging to the CXC chemokine family. CXCL4/PF4 is released from the alpha-granules of activated platelets and binds with high affinity to heparin. Its major physiologic role appears to be neutralization of heparin-like molecules on the endothelial surface of blood vessels, thereby inhibiting local antithrombin III activity and promoting coagulation. As a strong chemoattractant for neutrophils and fibroblasts, CXCL4/PF4 probably has a role in inflammation and wound repair. This protein is released during platelet aggregation. CXCL4/PF4 neutralizes the anticoagulant effect of heparin because it binds more strongly to heparin than to the chondroitin-4-sulfate chains of the carrier molecule. CXCL4 is chemotactic for neutrophils and monocytes. It inhibits endothelial cell proliferation, the short form is a more potent inhibitor than the longer form. 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. |
| Species | Human |
| Expression System | E. coli |
| Tag | Tag Free |
| Accession Number | P02776 |
| Construction | A DNA sequence encoding the human CXCL4 (NP_002610.1) (Glu 32-Ser 101) was expressed. Predicted N terminal: Met |
| Protein Purity | > 80 % as determined by SDS-PAGE |
| Endotoxin | < 1.0 EU/μg of the protein as determined by the LAL method. |
| Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
| Reconstitution | A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information. |
| Stability & Storage | It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots. |
| Shipping | In general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice. |
| Synonyms | SCYB4, platelet factor 4, PF-4, CXCL4 |
| Research Background |
| Molecular Weight | 7.8 kDa (predicted); 7.8 kDa (reducing conditions) |
| Storage | Lyophilized powder: -20~-80°C for 1 year | Solution: -80°C for 6 months |
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Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc
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Related Tags: CXCL4 Protein, Human, Recombinant chemical structure | CXCL4 Protein, Human, Recombinant molecular weight
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