igg2a monoclonal antibody (immunoglobulin). many biotech drugs are antibodies. 3d rendering based on protein data bank entry 1igt

pdb1igt antibody immunoglobulin igg igg2a antibodies fab antigen epitope immune system response microbe bacteria virus blood biotech biotechnology drug biological diagnosis diagnostic therapeutic vaccine abciximab adalimumab alemtuzumab basiliximab belimumab bevacizumab cetuximab eculizumab efalizumab gemtuzumab infliximab ranibizumab trastuzumab rituximab immunotherapy elisa structure peptide protein amino acid molecule polypeptide polymer atoms science scientific disease health molecular model 3d rendering illustration cartoon secondary red yellow sheet helix betasheet alphahelix sketch technical drawing pencil