Polymeric Immunoglobulin Receptor

**Semantic type:** Amino Acid, Peptide, or Protein|Receptor

**Definition:** Polymeric immunoglobulin receptor (764 aa, ~83 kDa) is encoded by the human PIGR gene. This protein is involved in basolateral-to-apical transcytosis of IgA and IgM polymers across epithelial cells.

**Synonyms:** - Hepatocellular Carcinoma Associated Protein TB6 - Hepatocellular Carcinoma-Associated Protein TB6 - PIGR - PIgR - Poly-Ig Receptor