PF4

Liquid. In 1.5 M NaCl, 20 mM Tris-HCl, pH 8.3. AVOID FREEZE/THAW CYCLES. Native platelet factor 4 from human platelets. A heparin-binding protein released from a-granules of activated platelets. Binds to the newly formed blood vessels and reduces tumor neovascularization. Purity: ≥95% by SDS. Prepared from platelets that have been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV. CAS 37270-94-3. M.W. 7800-9000 (monomer).

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