subsequent differentiative processes may involve rearrangement within the immunoglobulin heavy chain chromosomal locus to enable cells of the same lineage to synthesize immunoglobulins of other heavy chain classes ( e. g. igg , ige or iga ) , but with specificity for the same antigen as the original igm molecule .
C0017351
immunoglobulin heavy chain
C0021034
immunoglobulins