IUPAC definition : A protein of the globulin-type found in serum or other body fluids that possesses
antibody activity. An individual Ig molecule is built up from two light (L) and two
heavy (H) polypeptide chains linked together by disulfide bonds. Igs are divided into
five classes based on antigenic and structural differences in the H chains.;
A protein of the globulin-type found in serum or other body fluids that possesses
antibody activity. An individual Ig molecule is built up from two light (L) and two
heavy (H) polypeptide chains linked together by disulfide bonds. Igs are divided into
five classes based on antigenic and structural differences in the H chains.