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MW: 950,000
Extinction Coefficient: 1.18

Frozen in 50 mM Tris-HCl, pH 8.0, with 200 mM NaCl and 0.05% NaN3

Storage: -20°C

IgM is found in normal plasma at a concentration of 1.2 to 4.0 mg/ml. It is the first immunoglobulin produced during the immune response, the first antibody in neonates, and is involved in pathogenesis of autoimmune diseases. A diminished level of IgM is associated with Wiskott-Aldrich syndrome.

Purity: >=95% by SDS-PAGE

Prepared from plasma shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA approved tests.

Athens Research & Technology products are laboratory reagents and are not to be administered to humans or used for any drug purpose. For research or further manufacturing use only.

Product Citation:
Herati RS, et al. Circulating CXCR5+PD-1+ Response Predicts Influenza Vaccine Antibody Responses in Young Adults but not Elderly Adults. J Immunol. 2014 Oct 1;193(7):3528-37. doi: 10.4049/jimmunol.1302503. Epub 2014 Aug 29.

Anquetil F, et al. IgM and IgA Rheumatoid Factors Purified from Rheumatoid Arthritis Sera Boost the Fc Receptor– and Complement-Dependent Effector Functions of the Disease-Specific Anti–Citrullinated Protein Autoantibodies. J Immunol. 2015 Apr 15;194(8):3664-74. doi: 10.4049/jimmunol.1402334. Epub 2015 Mar 13.