Recombinant Human CXCL4/PF4 Protein (His Tag)

CXCL4;PF4

P02776

Human Chemokine (C-X-C motif) Ligand 4 (CXCL4) is expressed in megakaryocytes and stored in the alpha-granules of platelets. CXCL4 contains several heparin-binding sites at the C-terminal region and binds heparin with high affinity. The active CXCL4 protein is a tetramer. Human and mouse CXCL4 share 64% sequence identity. CXCL4 is chemotactic for neutrophils, fibroblasts and monocytes and plays a critical role in inflammation and wound repair. CXCL4 functions via a splice variant of the chemokine receptor CXCR3, known as CXCR3B. The major physiologic role of CXCL4 appears to be neutralization of heparin-like molecules on the endothelial surface of blood vessels, thereby inhibiting local antithrombin III activity and promoting coagulation. In contrast to other CXC chemokines, CXCL4 lacks chemotactic activity for polymorphonuclear granulocytes.

8.5 kDa

< 1.0 EU per ug of the protein as determined by the LAL method.

HEK293 Cells

Lyophilized from a 0.2 um filtered solution of 20mM PB,150mM NaCl,pH7.4.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.

C-6His

10-14 kDa

> 95 % as determined by reducing SDS-PAGE.

Glu32-Ser101

Platelet Factor 4;PF-4;C-X-C Motif Chemokine 4;Iroplact;Oncostatin-A;PF4;CXCL4;SCYB4

P02776