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Research Catalog · peptide family

Platelet Factor 4 (PF4 / CXCL4) — Research Products

10 catalog items

Catalog # Product Type Species Size Price Add to cart
RK-045-78 PF4 (10-60) (Human) RIA kit RIA kit Assay Kits Human 125 tubes $942.00 $1109.00
RK-045-70 PF4 (platelet factor 4) (Human) RIA kit RIA kit Assay Kits Human 125 tubes $942.00 $1109.00
045-76 Platelet Factor 4 (PF4) / CXCL4 (1-16) (Human) Peptides Human 100 µg $194.00 $229.00
045-78 Platelet Factor 4 (PF4) / CXCL4 (10-60) (Human) Peptides Human 100 µg $388.00 $457.00
045-74 Platelet Factor 4 (PF4) / CXCL4 (17-70) (Human) Peptides Human 100 µg $388.00 $457.00
045-66 Platelet Factor 4 (PF4) / CXCL4 (47-70) (Human) Peptides Human 500 µg $260.00 $306.00
045-67 Platelet Factor 4 (PF4) Var (47-70) / CXCL4L1 (Human) Peptides Human 500 µg $260.00 $306.00
045-72 potent analogue of cleaved-Platelet Factor 4 (PF4) / CXCL4 (Human) Peptides Human 100 µg $451.00 $531.00
045-65 recombinant-Platelet Factor 4 (PF4) / CXCL4 (Human) Peptides Human 20 µg $255.00 $300.00
045-70 synthetic-Platelet Factor 4 (PF4) / CXCL4 (Human) Peptides Human 100 µg $451.00 $531.00

All items are supplied for in vitro laboratory research use only — not for human or veterinary use, diagnosis or therapy. Prices are per unit as listed; each catalog number ships with its Certificate of Analysis.

Platelet Factor 4 (PF4 / CXCL4) — frequently asked

What is platelet factor 4?
Platelet factor 4, also called CXCL4, is a small chemokine stored in platelet alpha granules and released when platelets are activated. Its highly basic C-terminal region binds heparin and other sulfated glycosaminoglycans with high affinity.
Why is PF4 studied?
Research covers its reported effects on angiogenesis, endothelial and monocyte behaviour and megakaryopoiesis, as well as its heparin-neutralising property. Complexes of PF4 with heparin are also a significant focus in immunology research.
What is CXCL4L1?
CXCL4L1, sometimes listed as the PF4 variant, is a closely related gene product differing by a small number of C-terminal residues. It is reported to differ from PF4 in glycosaminoglycan binding and in angiostatic potency.