Immunoglobulin A (IgA)- Structure, Subclasses and Functions

Immunoglobulin A (IgA)- Structure, Subclasses and Functions

Antibodies, or ‘immunoglobulins’, are glycoproteins that bind antigens with high specificity and affinity. In humans there are five chemically and physically distinct classes of antibodies (IgG, IgA, IgM, IgD, IgE). Immunoglobulin A (IgA), is the major class of antibody present in the mucosal secretions of most mammals. It is the key first line of defence against invasion by inhaled and …

Read moreImmunoglobulin A (IgA)- Structure, Subclasses and Functions