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
 LEU-69   THR-70  6.3 7.1 -15.5 0.7 137.5 160.6 -10.8
 THR-70   MET-71  6.2 7.2 -7.1 4.4 82.0 101.9 -5.1
 MET-71   MET-72  3.7 4.3 -0.2 -7.6 107.2 94.3 -1.8
 MET-72   ALA-73  1.9 2.5 -2.4 6.1 173.5 144.4 3.2
 ALA-73   ARG-74  2.6 5.0 11.1 -17.1 68.6 35.9 -5.9
 ARG-74   LYS-75  2.6 3.0 -19.2 106.3 71.6 95.2 -15.0
 LYS-75   MET-76  2.5 0.8 -54.6 28.3 136.3 133.1 -12.1
 MET-76   LYS-77  3.6 3.0 -124.6 -1.9 123.6 151.1 143.1

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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