Figure 4:RASMOL generated structures of protein hormones using RCSB Protein Data Bank (PDB) files (
(a) Insulin-like growth factor-1 (1 polypeptide chain of 70 residues) PDB reference 1GZR.
(b) Human insulin (2 polypeptide chains A 21 residues & B 30 residues) PDB reference 3I3Z.
(c) Human growth hormone (1 polypeptide chain of 191 amino acid residues,) PDB reference 1HGU.