Fold menu

• Helix Settings..., Predict Helix, HCA, CF: (not available)
• Turn Bond: (item enabled only if a torsion atom has been selected by double-clicking on an atom with the Option key down)
  If the 'Show Clash Between Atoms During Torsion' has been set in the   File/Preferences dialog, clashed atoms are marked as torsion proceeds.
  * ClockWise, CounterCW: (⌘S, ⌘/) Torsion direction around the torsion atom.
  * Go Crazy: randomly(?) turn all bonds of a structure.
• Step Folding: Display residue after residue the folding of a structure (use ⌘Y to do this). If the OptionKey is down when choosing this menu item, the folding is not automatic but occurs stepwise (use ⌘Y to enter one residue at a time).
Structural information concerning each residue is given:
 region (region of Ramachandran plot): pack (helix region), packG (symetrical of helix region), extd (sheet region), extdG (symetrical of sheet region), out (none of the preceeding);
  state : alpha, 310, strand, turn, coil;
  phi : phi angle in degree.
  psi : psi angle in degree.
  chi1 : chi1 angle in degree.
  OBded: indicates to what atom(s) main chain oxygen is H-bonded (Bded= bonded).
  NBded: indicates to what atom(s) main chain nitrogen is H-bonded.
  SCBded: indicates to what atom(s) side chain atoms are H-bonded.
• Fold Into Helix.