Warning: Chirality deviations detected

 The atoms listed in the table below have an improper dihedral value that is deviating from expected values.

Improper dihedrals are a measure of the chirality/planarity of the structure at a specific atom. Values around -35 or +35 are expected for chiral atoms, and values around 0 for planar atoms. Planar side chains are left out of the calculations, these are better handled by the planarity checks.

Three numbers are given for each atom in the table. The first is the Z-score for the improper dihedral. The second number is the measured improper dihedral. The third number is the expected value for this atom type. A final column contains an extra warning if the chirality for an atom is opposite to the expected value. 

  20 ASP  (  20 )      CA     -5.1     22.1     34.0
  90 ALA  (  93 )      CA     -4.0     26.8     34.4
 121 LYS  ( 124 )      CA     -4.5     24.9     34.3
 123 TRP  ( 126 )      CA     -4.9     22.4     34.3

Note: Improper dihedral angle distribution OK

 The RMS Z-score for all improper dihedrals in the structure is within normal ranges.

Improper dihedral Z-score : 1.053