NCIt synonyms : Immunoglobulin G Subclass 2; Immunoglobulin G2;
NCIt definition : The second most abundant immunoglobulin G (IgG) subclass in the circulation of healthy
individuals. The IgG2 core hinge sequence contains 12 amino acids and up to four interchain
disulfide bonds. This subtype has low affinity for binding both Fc receptors and complement
component C1q. The production of this IgG2 is stimulated by exposure to bacterial
capsular polysaccharides and other antigenic glycans.;