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
 LYS-77   ASP-78  5.0 3.3 -157.8 -8.7 21.6 61.8 87.5
 ASP-78   THR-79  4.8 2.5 137.4 68.6 108.1 169.2 -134.6
 THR-79   ASP-80  3.2 4.0 -143.1 -2.1 7.7 73.7 79.9

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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