重组人妊娠特异性糖蛋白9(PSG9)

特别提示：包括重组人妊娠特异性糖蛋白9(PSG9)在内，本公司的所有产品仅可用于科研实验，严禁用于临床医疗及其他非科研用途！

产品名称：重组人妊娠特异性糖蛋白9(PSG9)
英文名称：Recombinant Human Pregnancy-specific beta-1-glycoprotein 9
产品规格：10μg|50μg|500μg|1mg

本品由我们的哺乳动物细胞表达系统制备而成，目的基因编码的Glu35-Ser426在C端含有His标签。

PSG9质量控制：＞95%(还原性SDS-PAGE)

PSG9制剂：液体

PSG9保存：收到货后请置于-20℃，可保存6个月，避免反复冻融。

关于PSG9：
Pregnancy-specific beta-1-glycoprotein 9(PSG9) is a secreted protein and contains 3 Ig-like C2-type (immunoglobulin-like) domains, 1 Ig-like V-type (immunoglobulin-like) domain. It is a member of the PSG family, a group of closely related secreted glycoproteins that are highly expressed in fetal placental syncytiotrophoblast cells. The members of the PSG protein family all have a characteristic N-terminal domain that is homologous to the immunoglobulin variable region. PSGs become detectable in serum during the first two to three weeks of pregnancy and increase as the pregnancy progresses, eventually representing the most abundant fetal protein in the maternal blood at term. PSGs function to stimulate secretion of TH2-type cytokines from monocytes, and they may also modulate the maternal immune system during pregnancy, thereby protecting the semi-allotypic fetus from rejection. PSGs are commonly expressed in trophoblast tumors. Eleven human PSG proteins (PSG1-PSG11) have been described.