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-72   ALA-73  1.6 3.2 -5.9 19.2 174.5 157.7 12.1
 ALA-73   ARG-74  2.8 5.7 -7.2 -3.2 115.9 143.9 -6.7
 ARG-74   LYS-75  3.0 4.5 130.1 -31.4 101.9 80.1 8.5
 LYS-75   MET-76  2.5 1.3 -148.8 66.7 141.5 124.3 -48.8
 MET-76   LYS-77  3.0 2.3 32.6 136.7 62.2 31.3 125.2
 SER-81   GLU-82  6.8 7.0 -119.0 61.5 115.4 119.7 -2.6

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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