Human Polymeric Immunoglobulin Receptor (PIGR) ELISA Kit

A quantitative immunoassay from Assay Genie calibrated for human polymeric immunoglobulin receptor (PIGR), the type I transmembrane protein that shuttles polymeric IgA and IgM across mucosal epithelium and is shed as secretory component into luminal secretions. Investigators in mucosal immunology, hepatology, and epithelial-barrier research apply this kit to serum, urine, saliva, and plasma-derived samples as well as conditioned cell-culture supernatant. The assay uses matched capture and detection antibody pairs directed against distinct epitopes of human PIGR, with bound analyte revealed through a biotin-streptavidin reporter. Each kit ships as a complete pack sized for 96 individual determinations and includes a pre-coated microplate, lyophilized recombinant standards, a biotinylated detection reagent, streptavidin conjugate, wash and dilution buffers, substrate, and stop solution. Working standards should be aliquoted on first use to limit repeated freeze-thaw cycles, and unopened components are kept under refrigerated storage. The method suits in vitro studies of transcytosis, secretory IgA assembly, biomarker discovery in inflammatory bowel disease, hepatitis, and IgA nephropathy, and is supplied for research use only.