Human Immunoglobulins are a diverse class of human antibodies made up mainly by Immunoglobulin G (IgG), which represents approximately 75% of the immunoglobulins in human plasma. Immunoglobulins A (IgA), D (IgD), E (IgE), and M (IgM) make up the remaining 25%. Each class of antibody gets its designation from the heavy and light peptide chains that make up the antibody structure.
Human immunoglobulins from Scripps Laboratories are purified from human plasma and/or serum and are supplied in a liquid form. The buffers used are phosphate or tris buffered saline, with slightly differing salt concentrations. IgA, IgG, and IgM are characterized for protein content by A280, using the appropriate extinction coefficients. IgE is tested using the Lowry protein assay. The serum forms of IgE (unpurified) are tested by EIA.
Scripps Laboratories is a world-leading producer and supplier of several purified human Immunoglobulins: IgA, IgE, IgG, IgM. Several preparations are available, ranging from neat serum or plasma to highly purified. Products are prepared on-site and shipped to you directly. For Bulk Discounts or additional product information, please use the button below to send us a note.