Calmodulin

(All numbering and residues are taken from first PDB file)

Bending Residue Dihedral Analysis

Residue
i
Residue
i+1
Distance of hinge axis to residue i in conformer 1
(A)
Distance of hinge axis to residue i in conformer 2
(A)
Change in psi (i)
(deg)
Change in phi (i+1)
(deg)
Angle of psi(i) axis to hinge axis conformer 1
(deg)
Angle of psi(i) axis to hinge axis conformer 2
(deg)
Percentage Progress
 ARG-74   LYS-75  6.9 7.1 -14.8 -44.8 104.0 95.2 -5.3
 LYS-75   MET-76  5.5 4.1 41.7 29.2 118.9 156.3 -44.7
 MET-76   LYS-77  3.1 4.4 -152.5 4.8 36.2 30.2 73.6
 SER-81   GLU-82  7.0 7.3 -98.8 76.1 102.5 89.2 -0.1
 GLU-82   GLU-83  10.6 9.6 -37.9 27.4 37.0 42.2 1.7

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Graph shows rotational transition at bending residues and can be used to identify hinge bending residues.
Probably only informative for interdomain rotations greater than 20 degrees