PF-4, CXCL4, human

Thương hiệu: Bio Basic-Canada | Tình trạng: Còn hàng

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PF-4, CXCL4, human
CAT: RC312-15
Purity: >97% by SDS-PAGE and HPLC analyses.
Storage: (-15 to -20)C

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PF-4, CXCL4, human
CAT: RC312-15
Purity: >97% by SDS-PAGE and HPLC analyses.
Storage: (-15 to -20)C
Sterile: Yes
Formulation: Lyophilized from a 0.2mm filtered concentrated solution in 20mM PB, 1.5M NaCl, pH 7.4.

Product Description: PF-4, CXCL4, human: Platelet Factor 4 is a member of the CXC chemokine family, CXCL4. CXCL4 has homology with IL8 and β thromboglobulin. The active protein consists of a tetramer composed of individual CXCL4 subunits. Megakaryocytes synthesize CXCL4 and store it as tetramers in α-granules. The CXCL4 tetramers are secreted by activated platelets and can be measured at micromolar levels in serum. In contrast to other CXC chemokines, CXCL4 lacks chemotactic activity for polymorphonuclear granulocytes. CXCL4 does not contain an ELR motif. However, many other functions have been observed for CXCL4. CXCL4 is involved in monocyte survivial and differentiation into macrophages, and it has antiangiogenic activity. CXCL4 has been demonstrated to inhibit the binding of FGF2 to highaffinity receptors and its subsequent internalization. Cell surface neutrophil chondroitin sulfate chains serve as CXCL4 binding sites; affinity is controlled by the degree of sulfation of these chains.

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