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  4.1 2.7 -27.8 0.5 104.7 120.1 -3.3
 LYS-75   MET-76  4.8 2.3 23.7 75.5 29.4 64.8 35.4
 MET-76   LYS-77  3.3 2.6 -174.7 -0.5 89.7 147.1 -52.0

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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