Anti-galactose-deficient IgA1 Recombinant Antibody|抗半乳糖缺陷型IgA1重组抗体(靶标：半乳糖缺陷型IgA1)

Immunoglobulin heavy constant alpha 1 (Gd-IgA1) is a ~42 kDa protein. Constant region of immunoglobulin heavy chains. Immunoglobulins, also known as antibodies, are membrane-bound or secreted glycoproteins produced by B lymphocytes. In the recognition phase of humoral immunity, the membrane-bound immunoglobulins serve as receptors which, upon binding of a specific antigen, trigger the clonal expansion and differentiation of B lymphocytes into immunoglobulins-secreting plasma cells. Secreted immunoglobulins mediate the effector phase of humoral immunity, which results in the elimination of bound antigens. The antigen binding site is formed by the variable domain of one heavy chain, together with that of its associated light chain.