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
 GLU-67   PHE-68  6.2 5.8 -7.3 5.4 118.0 121.7 2.8
 PHE-68   LEU-69  3.7 3.2 -6.0 -3.1 147.6 129.4 -2.3
 LEU-69   THR-70  2.0 2.0 -27.7 2.2 139.9 147.6 196.8
 THR-70   MET-71  5.2 4.8 12.0 -9.3 65.6 49.6 -0.6
 MET-71   MET-72  5.4 4.2 -4.2 -4.7 120.5 121.5 -4.1
 MET-72   ALA-73  2.5 1.2 4.9 -7.5 29.4 48.7 1.6
 ALA-73   ARG-74  1.9 2.2 -178.5 -117.4 132.2 126.9 -171.3
 ARG-74   LYS-75  5.0 3.0 -56.4 136.7 103.6 160.1 27.2
 LYS-75   MET-76  5.3 1.0 -139.1 -30.5 154.8 131.0 92.7
 SER-81   GLU-82  7.9 6.4 -69.2 40.0 98.1 63.1 1.9
 GLU-82   GLU-83  10.5 7.8 -17.0 51.4 79.4 65.7 -10.9

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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