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
 ARG-75   LYS-76  6.9 5.7 7.5 19.8 59.7 83.3 14.0
 LYS-76   MET-77  7.9 6.1 -23.6 30.3 114.8 110.4 1.5
 MET-77   LYS-78  5.7 3.8 77.9 -6.5 42.0 14.2 37.5
 LYS-78   ASP-79  3.5 4.2 -38.4 -10.4 152.6 110.2 -15.7
 ASP-79   THR-80  3.6 3.8 -72.6 -10.7 107.5 148.5 -44.5
 THR-80   ASP-81  5.9 6.7 138.5 46.2 86.6 51.2 -39.5
 ASP-81   SER-82  5.0 5.9 -170.0 53.6 106.2 161.0 137.6
 SER-82   GLU-83  4.8 4.9 38.1 16.7 71.5 63.1 8.2

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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