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Immunoglobulin M. Immunoglobulin M ( IgM) is the largest of several isotypes of antibodies (also known as immunoglobulin) that are produced by vertebrates. IgM is the first antibody to appear in the response to initial exposure to an antigen; [ 1][ 2] causing it to also be called an acute phase antibody. In humans and other mammals that have ...
Hyper IgM syndrome is a rare primary immune deficiency disorders characterized by low or absent levels of serum IgG, IgA, IgE and normal or increased levels of serum IgM. [ 8] They are resulting from mutations in the pathway from B-cell activation to isotype class switching. Patients with HIGM are usually diagnosed within the first two years of ...
Hematology. Isolated primary immunoglobulin M deficiency [1] is a poorly defined dysgammaglobulinemia characterized by decreased levels of IgM while levels of other immunoglobulins are normal. The immunodeficiency has been associated with some clinical disorders including recurrent infections, atopy, Bloom's syndrome, celiac disease, systemic ...
Antiganglioside antibodies. Antiganglioside antibodies that react to self- gangliosides are found in autoimmune neuropathies. These antibodies were first found to react with cerebellar cells. [ 1] These antibodies show highest association with certain forms of Guillain–Barré syndrome .
Hypergammaglobulinemia is a condition that is characterized by the increased levels of a certain immunoglobulin in the blood serum. [1] The name of the disorder refers to an excess of proteins after serum protein electrophoresis (found in the gammaglobulin region). [citation needed] Most hypergammaglobulinemias are caused by an excess of ...
The J chain regulates the multimerization of IgM and IgA in mammals. When expressed in cells, it favors the formation of a pentameric IgM and an IgA dimer. IgM pentamers are most commonly found with a single J chain, but some studies have seen as many as 4 J chains associated to a single IgM pentamer. The J chain is incorporated late in the ...
The fragment crystallizable region ( Fc region) is the tail region of an antibody that interacts with cell surface receptors called Fc receptors and some proteins of the complement system. This region allows antibodies to activate the immune system, for example, through binding to Fc receptors. In IgG, IgA and IgD antibody isotypes, the Fc ...
Anti-IgM [M15/8] This is a recombinant monoclonal antibody to IgM. The anti-antibody functions in early detection of antigens in serum rather than interstitial fluids. [13] Anti-IgM [B481] This is a recombinant monoclonal antibody to IgM. It is recommended to use anti-IgM [B481] as a secondary antibody against IgM primary antibodies. [14]