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  5.3 4.0 -5.3 -8.4 140.6 127.7 -6.3
 ALA-73   ARG-74  4.3 3.6 21.1 13.0 33.3 20.6 21.0
 ARG-74   LYS-75  6.1 5.1 0.0 0.1 94.3 59.4 2.0
 LYS-75   MET-76  6.1 2.4 19.5 81.8 57.0 51.1 37.2
 MET-76   LYS-77  3.6 1.8 -174.9 -6.4 90.5 143.6 -86.6

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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