This set contains the polar amino acids. All amino acids are classified as either hydrophobic or polar. Protein Set The set of all atoms in proteins. This consists of the RasMol predefined set amino and common post-translational modifications. The set of purine nucleotides.
All nucleotides are either purines or pyrimidines .
Pyrimidine Set The set of pyrimidine nucleotides. All nucleotides are either purines or pyrimidines. This set contains the set of atoms in the currently selected region. The currently selected region is defined by the preceding select or restrict command and not the atom expression containing the selected keyword. By default, RasMol uses the secondary structure determination given in the PDB file if it exists.