Immunoglobulin M (IgM)- Structure and Functions

Immunoglobulin M (IgM)- Structure and Functions

Immunoglobulin M (IgM) is an antigen receptor on B cells and the first antibody produced in an immune response. It is present both on B cells, and as a soluble molecule in the blood. Because of its large size (900 kDa), IgM is found primarily in the intravascular space i.e. in the bloodstream and also lymph fluid. Serum IgM exists …

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