Ig gamma-2A chain C region (Immunoglobulin heavy chain gamma polypeptide) is one of the five types of mammalian immunoglobulin heavy chain: γ, δ, α, μ and ε. Heavy chain γ defines the classes of immunoglobulins IgG[1]. IgG2A Fc Protein, Mouse (HEK293) is the recombinant mouse-derived IgG2A Fc protein, expressed by HEK293 , with tag free.