scattered immunoglobulin a or iga molecules with secretory protein

antibody protein immunotherapy molecule biochemistry scattered immunology biotechnology medicine research antigen chemical science drug abstract symbol composition blue three dimensional molecular structure conjugation biological process immune system midair levitation healthcare closeup immunity bonding peptide nanotechnology cut immunoglobulin iga specific atoms epitope health bond compound type antibodies secretory therapeutic molecules monoclonal binding float conjugated close medical polypeptide rendering bonds defense