Source: Sf9, Baculovirus cells.Sterile Filtered colorless solution.PSG5 belongs to the PSG family, which are a highly connected group of secreted glycoproteins, vastly expressed in fetal placental syncytiotrophoblast cells. PSGs are can be found in serum from the first 2-3 weeks of pregnancy and at higher levels as the pregnancy progresses, up to e point where they are the highest fetal protein found in maternal blood at term. PSG5’s role is inducing secretion of TH2-type cytokines from monocytes and modulating the maternal immune system throughout the pregnancy, thus defending the semi-allotypic fetus from rejection.PSG5 Human Recombinant produced in Sf9 Insect cells is a single, glycosylated polypeptide chain containing 310 amino acids (35-335 a.a.) and having a molecular mass of 35.1kDa (Molecular size on SDS-PAGE will appear at approximately 28-40kDa). PSG5 is expressed with a 6 amino acids His tag at C-Terminus and purified by proprietary chromatographic techniques.