interferon alpha 2a (ifna2) molecule. pegylated analogs of this cytokine are used to treat hepatitis b and c infections. 3d

pdb1itf interferon alfa alpha ifn antiviral tumor cancer cytokine immune immunity autoimmune disease hepatitis immunosuppression polyethylene glycol pegylated lymphocyte white blood cell structure peptide protein amino acid molecule polypeptide polymer atoms science scientific health molecular model 3d rendering illustration ball stick black background sphere ballandstick