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
 PHE-68   LEU-69  2.6 2.5 -3.4 -2.6 31.6 44.5 0.6
 LEU-69   THR-70  2.5 3.1 -11.6 -6.1 41.7 37.6 8.9
 THR-70   MET-71  4.8 5.5 -0.4 7.2 64.6 50.8 -0.4
 MET-71   MET-72  4.1 4.2 -7.0 -2.8 57.9 51.3 3.6
 MET-72   ALA-73  0.9 0.6 7.8 -1.4 149.5 138.1 -3.7
 ALA-73   ARG-74  2.1 3.5 -6.0 -34.2 48.3 39.7 14.5
 ARG-74   LYS-75  4.0 4.6 100.8 4.6 105.2 83.9 -18.8
 LYS-75   MET-76  3.7 3.0 -151.1 71.9 23.7 75.6 35.8
 MET-76   LYS-77  2.1 6.5 0.1 -10.4 92.8 150.5 1.9
 SER-81   GLU-82  9.5 14.3 14.3 37.0 96.3 99.6 -5.0
 GLU-82   GLU-83  12.1 11.2 -21.9 -22.1 101.1 102.8 -2.5
 GLU-83   GLU-84  15.2 12.6 107.4 -6.7 7.6 20.2 -144.3

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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