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
 MET-76   LYS-77  4.5 5.2 -11.5 8.5 135.4 134.5 41.0
 LYS-77   ASP-78  6.0 6.8 -8.9 4.7 112.1 113.6 -37.9
 ASP-78   THR-79  3.3 4.0 3.2 1.4 127.0 129.3 25.2

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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