Recombinant Human PIGR protein

>90% as determined by SDS-PAGE

Please contact with the lab for this information.

A DNA sequence encoding the human PIGR (Arg289-Arg638) was fused with His tag

P01833

E.coli

Homo sapiens (Human)

39.25 kDa

Supplied as solution form in PBS pH 7.5 or lyophilized from PBS pH 7.5.

In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.

Use a manual defrost freezer and avoid repeated freeze thaw cycles.
Store at 2 to 8 °C for one week .
Store at -20 to -80 °C for twelve months from the date of receipt.

Reconstitute in sterile water for a stock solution.A copy of datasheet will be provided with the products, please refer to it for details.

The human Polymeric Immunoglobulin Receptor (pIgR) is a 100 kDa type I transmembrane glycoprotein. Its precursor is 764 amino acids. It contains an 18 amino acid signal sequence, a 620 amino acid extracellular region, a 23 amino acid transmembrane fragment, and a 103 amino acid cytoplasmic domain. pIgR is synthesized by secretory epithelial cells with five Ig-like domains in extracellular region, and transfer to the basolateral plasma membrane. For IgA and IgM polymers, in addition to α-heavy chains and light Ig chains, a short polypeptide named joining chain (J chain) is also contained and required. pIgR can bind larger polymers of IgA (pIgA) and pentameric IgM as a carrier that transports IgA and IgM across epithelium. The receptor-ligand complexes are endocytosed and transcytosed to the apical surface, then proteolytic cleavage of the sixth extracellular domain of pIgR and generate secretory IgA (SIgA), the pIgR fragment is referred to as secretory component (SC). SIgA is a important component of the mucosal immune system. SC is anti-microbial properties and protects SIgA from proteolytic degradation.

Polymeric immunoglobulin receptor,Short name:PIgR,Short name:Poly-Ig receptor,Hepatocellular carcinoma-associated protein TB6

For research use only .