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
 ALA-73   ARG-74  1.7 2.1 4.8 3.4 50.1 48.4 3.3
 ARG-74   LYS-75  4.6 5.4 -21.5 -3.8 102.1 109.9 -3.8
 LYS-75   MET-76  4.9 6.0 16.7 60.3 24.1 44.5 35.4
 MET-76   LYS-77  3.3 3.6 -146.4 19.0 95.9 148.2 -37.8

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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