Uses
Monoclonal anti-human IgG2 (Fc specific) antibody can be used to detect IgG2 subclass by using different immunoassays like- hemagglutination (HA), hemagglutination inhibition(HAI), Imprint Immunofixation (IIF) and Particle Counting Immunoassay (PACIA). It can also be used in immunohistological assays.
General Description
IgG is the main antibody type found in plasma and extracellular fluid and is expressed on B cell membrane. IgG is further subdivided into four subclass- IgG1, IgG2, IgG3 and IgG4 and contribute 65, 30, 5 and 4% in total IgG. IgG2 produce in response to anti-polysaccharide. Monoclonal anti-human IgG2 (Fc specific) antibody can be used in indirect ELISA and Immunofluorometric Assay (IFMA). Mouse anti-human IgG2 (Fc specific) antibody reacts specifically with IgG2 of human but not with other IgG subclasses.
Biochem/physiol Actions
IgG2 immunoglobulin is a 146 kDa IgG subtype, which mediates immune response to the polysaccharide antigens of the bacterial capsule. Deficiency of IgG2 poses an increased risk to certain bacterial infections. IgG2 has the least affinity among the IgG subtypes to Fcγ receptors (FcγR). IgG2 exists in three forms namely, IgG2-A, -B, and -A/B. They show variation in the arrangement of fragment antigen binding domain (Fab) and hinge region.
