GRADE & PURITYCarrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Native?Native grade — protein/biomolecule in its natural (non-recombinant, non-denatured) form. Use when native structure and activity are required.Azide Free?Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory.Lyophilized powder?Lyophilized (freeze-dried) powder — gently dried to preserve activity and aid storage. Use for sensitive biologics reconstituted before use.≥95%(SDS-PAGE)
Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Übersicht
Extinction Coefficient: 2.6
A heparin-neutralizing protein which is contained in platelet storage granules. Platelet Factor 4 is released during aggregation, but its actual role in normal or abnormal hemostasis is unknown.
Prepared from platelets shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA-required tests.
Specifications
Product Name
Platelet Factor 4 from Human Platelet
Synonyme
Platelet Factor 4, Human Platelet | Human CXCL4 (PF4) Native Protein | Native human PF4 protein from the supernatant of thrombin-activated platelets | Native Human PF4 protein | PF4 | PF-4 | CXCL4 | SCYB4
Chemokine released during platelet aggregation that plays a role in different biological processes including hematopoiesis, cell proliferation, differentiation, and activation. Acts via different functional receptors including CCR1, CXCR3A or CXCR3B. Upon
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