Name :
Recombinant Mouse pIgR Protein (His Tag)
Biological Activity :
Background :
Polymeric immunoglobulin receptor, also known as PIGR, is a member of the immunoglobulin superfamily and a Fc receptor. The ectodomain of this receptor consists of five units with homology to the variable units of immunoglobulins and a transmembrane region, which also has some homology to certain immunoglobulin variable regions. PIGR is expressed on several glandular epithelia including those of liver and breast. The deduced amino-acid sequence has a length of 764 residues and shows an overall similarity of 56% and 64% with the rabbit and rat counterpart. PIGR mediates transcellular transport of polymeric immunoglobulin molecules, and thus facilitates the secretion of IgA and IgM. During this process, a cleavage occurs that separates the extracellular (known as the secretory component) from the transmembrane segment of PIGR.
Biological Activity :
Measured by its binding ability in a functional ELISA
. Immobilized recombinant mouse PIGR at 5 μg/ml (100 μl/well) can bind mouse IgM with a linear range of 0.156-10 μg/ml
.
Expression Host :
Mouse
Source :
HEK293 Cells
Tag :
Protein Accession No. :
NP_035212.2
NCBI Gene ID :
Synonyms :
Synonyms :
polymeric immunoglobulin receptor
Amino Acid Sequence :
Molecular Weight :
The secreted recombinant mouse PIGR consists of 638 amino acids and has a calculated molecular mass of 70.8 kDa. As a result of glycosylation, the recombinant protein migrates as an approximately 90-100 kDa protein in SDS-PAGE under reducing conditions.
Purity :
> 97 % as determined by SDS-PAGE
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg of the protein as determined by the LAL method
Protein Construction :
A DNA sequence encoding the extracellular domain (Met 1-Lys 645) of mouse PIGR (NP_035212.2) precursor was expressed with a C-terminal polyhistidine tag.
Buffer Solution :
Lyophilized from sterile PBS, pH 7.4.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
Pigr Protein, Mouse pIgR 背景信息 Polymeric immunoglobulin receptor, also known as PIGR, is a member of the immunoglobulin superfamily and a Fc receptor. The ectodomain of this receptor consists of five units with homology to the variable units of immunoglobulins and a transmembrane region, which also has some homology to certain immunoglobulin variable regions. PIGR is expressed on several glandular epithelia including those of liver and breast. The deduced amino-acid sequence has a length of 764 residues and shows an overall similarity of 56% and 64% with the rabbit and rat counterpart. PIGR mediates transcellular transport of polymeric immunoglobulin molecules, and thus facilitates the secretion of IgA and IgM. During this process, a cleavage occurs that separates the extracellular (known as the secretory component) from the transmembrane segment of PIGR.
References & Citations :
Coyne, R. S. et al., 1995, J. Biol. Chem. 269 (50) :31620-31625. Kaetzel,C.S., 2001, Curr Biol. 11(1): R35-38.
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