epidermal growth factor (egf) signaling protein molecule. 3d rendering based on protein data bank entry 2kv4. stylized cartoon

pdb2kv4 epidermal growth factor egf cell egfr receptor residue cancer tumor targeted gefitinib erlotinib afatinib osimertinib cetuximab colon lung inhibitor icotinib panitumumab brigatinib lapatinib 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