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
 GLU-83   GLU-84  5.7 9.0 17.0 13.2 100.0 72.4 4.7
 GLU-84   ILE-85  2.5 5.2 -0.6 10.9 123.1 166.8 4.8
 ILE-85   ARG-86  2.4 5.1 153.0 -60.7 11.0 58.4 57.5
 ARG-86   GLU-87  2.9 5.6 14.5 -55.8 74.2 27.1 -15.6
 GLU-87   ALA-88  2.2 2.8 -164.9 -97.1 101.3 107.4 12.8
 ALA-88   PHE-89  2.7 2.9 -177.2 -48.3 144.2 158.5 -144.4
 PHE-89   ARG-90  2.7 2.9 174.3 -84.8 36.9 55.5 54.9
 ARG-90   VAL-91  1.8 5.0 172.9 -16.5 86.5 16.3 79.4

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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