Noun
one of the five major classes of immunoglobulins; present in blood serum in small amounts
Source: WordNetThe type of heavy chain present defines the class of antibody; these chains are found in IgA, IgD, IgE, IgG, and IgM antibodies, respectively. Source: Internet
The updated corporate by-laws of IGD, filed with the Companies' Register of Bologna on 19 February 2020, are available at the registered office of IGD, on the website https://www. Source: Internet
The naive B lymphocyte expresses both surface IgM and IgD. Source: Internet
Each Fc region of a particular antibody isotype is able to bind to its specific Fc Receptor (except for IgD, which is essentially the BCR), thus allowing the antigen-antibody complex to mediate different roles depending on which FcR it binds. Source: Internet