Human Platelet Factor 4, Recombinant
Human PF-4 is expressed recombinantly and purified by chromatography. The purified protein in PBS is sterile filtered and lyophilized. Protein identity is confirmed by mass spectrometry (7.8 kDa monomer) and N-terminal sequencing (M-E-A-E-E). Purity is >95 percent by SDS-PAGE. Add deionized water to original volume, aliquot and freeze unused portion.