Anti-PIGR antibody produced in rabbit

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution, Ab2

Anti-Hepatocellular carcinoma-associated protein TB6, Anti-Poly-Ig receptor, Anti-Polymeric immunoglobulin receptor, PIGR Antibody - Anti-PIGR antibody produced in rabbit, Anti-PIGR, Pigr Antibody
Human Protein Atlas Number:
Pricing and availability is not currently available.

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



antibody small pack of 25 μL

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation


immunoblotting: 0.04-0.4 μg/mL
immunohistochemistry: 1:500-1:1000

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... PIGR(5284)

General description

PIGR (Polymeric immunoglobulin receptor) is a transmembrane glycoprotein belonging to the immunoglobulin superfamily. It is synthesized by the mucous membranes of the epithelial cells and exocrine glands and later expressed in the cytoplasm and cell membrane.


Polymeric immunoglobulin receptor Precursor recombinant protein epitope signature tag (PrEST)


Anti-PIGR antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org). Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.
All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

Biochem/physiol Actions

PIGR (Polymeric immunoglobulin receptor) is highly associated with the immunoglobulin transcytosis in the adaptive mucosal immune system. It guides the transport of secretory immunoglobulins until luminal surface of the gut mucosa by interacting with the polymeric immunoglobulin A (pIgA) and immunoglobulin M (pIgM). It forms pIgs-pIgR complex. The complex is cleaved at the apical surface to release the secretory immunoglobulins (sIgs). Its high expressions have been reported in several human cancers including pancreatic cancer. It has been predicted that tumor-specific PIGR expression can be a potential marker in cancer.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST70267.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.


NONH for all modes of transport

WGK Germany


Certificate of Analysis
Certificate of Origin
Richard Fristedt et al.
PloS one, 9(11), e112728-e112728 (2014-11-15)
The polymeric immunoglobulin receptor (pIgR) is a key component of the mucosal immune system that mediates epithelial transcytosis of immunoglobulins. High pIgR expression has been reported to correlate with a less aggressive tumour phenotype and an improved prognosis in several...
Jonna Berntsson et al.
Journal of ovarian research, 7, 26-26 (2014-02-27)
High expression of the polymeric immunoglobulin receptor (PIGR) has previously been associated with a favourable prognosis in a few cancer forms, but its expression and relationship with clinical outcome in epithelial ovarian cancer (EOC) has not yet been reported. The...
Richard Fristedt et al.
Journal of translational medicine, 12, 83-83 (2014-04-04)
The polymeric immunoglobulin receptor (PIGR) has been proposed to be a candidate prognostic biomarker in a few cancer forms, and one previous study reported that reduced PIGR expression signifies more aggressive tumours of the distal esophagus and gastroesophageal junction (GEJ)....
Kosaku Nanki et al.
Nature, 577(7789), 254-259 (2019-12-20)
With ageing, normal human tissues experience an expansion of somatic clones that carry cancer mutations1-7. However, whether such clonal expansion exists in the non-neoplastic intestine remains unknown. Here, using whole-exome sequencing data from 76 clonal human colon organoids, we identify...
Paolo Trevisi et al.
PloS one, 8(11), e81473-e81473 (2013-11-16)
To date few studies have addressed the development and function of the porcine gastric mucosal immune system and this is a major limitation to understanding the immunopathogenesis of infections occurring in young pigs. The polymeric immunoglobulin receptor (pIgR) mediates the...

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