PIGR Protein (His tag)

Catalog No. ABIN7319396

Product Details

Target: PIGR (Polymeric Immunoglobulin Receptor (PIGR))

Protein Type: Recombinant

Origin: Human

Source: Human Cells

Purification tag / Conjugate: This PIGR protein is labelled with His tag.

Purpose: Recombinant Human PIGR Protein (His Tag)

Sequence: Lys19-Arg638

Characteristics: Recombinant Human Polymeric Immunoglobulin Receptor is produced by our Mammalian expression system and the target gene encoding Lys19-Arg638 is expressed with a 6His tag at the C-terminus.

Purity: > 95 % as determined by reducing SDS-PAGE.

Endotoxin Level: < 1.0 EU per μg as determined by the LAL method.

Application Details

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Please refer to the printed manual for detailed information.

Buffer: Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.2.

Storage: 4 °C,-20 °C,-80 °C

Storage Comment: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Target Details

Target: PIGR (Polymeric Immunoglobulin Receptor (PIGR))

Alternative Name: PIGR (PIGR Products)

Synonyms: DKFZp469G1013 Protein, RNPIGR2 Protein, pIgA-R Protein, polymeric immunoglobulin receptor Protein, PIGR Protein, Pigr Protein

Background:

Background: 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

Synonym: Polymeric Immunoglobulin Receptor, PIgR, Poly-Ig Receptor, Hepatocellular Carcinoma-Associated Protein TB6, PIGR

Molecular Weight: 68.9 kDa

NCBI Accession: NP_002635