PF-4 Mouse Active Protein

PF4: Released during platelet aggregation. Neutralizes the anticoagulant effect of heparin because it binds more strongly to heparin than to the chondroitin-4-sulfate chains of the carrier molecule. Chemotactic for neutrophils and monocytes. Inhibits endothelial cell proliferation, the short form is a more potent inhibitor than the longer form. Belongs to the intercrine alpha (chemokine CxC) family.

Protein type: Chemokine; Secreted; Apoptosis; Secreted, signal peptide; Motility/polarity/chemotaxis

Cellular Component: extracellular space; protein complex; extracellular region; vesicle

Molecular Function: heparin binding; CXCR3 chemokine receptor binding; chemokine activity; CXCR chemokine receptor binding; cytokine activity

Biological Process: negative regulation of cytolysis; platelet activation; cytokine and chemokine mediated signaling pathway; leukocyte chemotaxis; response to lipopolysaccharide; positive regulation of leukocyte chemotaxis; positive regulation of cAMP metabolic process; positive regulation of tumor necrosis factor production; chemotaxis; negative regulation of megakaryocyte differentiation; regulation of cell proliferation; G-protein coupled receptor protein signaling pathway; negative regulation of angiogenesis; negative regulation of MHC class II biosynthetic process; protein complex assembly; immune response; positive regulation of transcription from RNA polymerase II promoter; inflammatory response; positive regulation of macrophage differentiation