Recombinant Human Pregnancy-specific beta-1-glycoprotein 9/PSG9/PSG11 is produced by our mammalian expression system in human cells. The target protein is expressed with sequence (Glu35-Ser426) of Human PSG9 fused with a polyhistidine tag at the C-terminus.
Pureté
> 95 % as determined by reducing SDS-PAGE.
Stérilité
0.2 μm filtered
niveau d'endotoxine
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Buffer
Supplied as a 0.2 μm filtered solution of 20 mM PB,150 mM NaCl, pH 7.5.
Conseil sur la manipulation
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
Stock
-80 °C
Stockage commentaire
Store at < -20°C, stable for 6 months after receipt. Please minimize freeze-thaw cycles.
Date de péremption
6 months
Antigène
PSG9
(Pregnancy Specific beta-1-Glycoprotein 9 (PSG9))
PS34 Protein, PSG11 Protein, PSGII Protein, PSBG-9 Protein, PSBG-11 Protein, pregnancy specific beta-1-glycoprotein 9 Protein, PSG9 Protein
Sub Type
Fusionprotein
Sujet
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. Alternative Names: Pregnancy-specific beta-1-glycoprotein 9, PS-beta-G-9, PSBG-9, Pregnancy-specific glycoprotein 9, PS34, Pregnancy-specific beta-1 glycoprotein B, PS-beta-B, Pregnancy-specific beta-1-glycoprotein 11, PS-beta-G-11, PSBG-11, Pregnancy-specific glycoprotein