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-76   LYS-77  5.9 5.6 26.6 -38.3 81.2 82.7 -0.9
 LYS-77   ASP-78  2.8 2.8 4.3 -30.9 131.7 134.9 8.8
 ASP-78   THR-79  4.0 4.5 65.8 -103.8 156.1 174.5 23.3
 THR-79   ASP-80  3.0 3.2 -171.0 3.8 88.7 69.1 -47.1
 ASP-80   SER-81  1.1 1.0 153.5 -4.8 93.6 105.2 121.8
 SER-81   GLU-82  3.0 4.4 34.3 -22.9 160.9 164.2 -3.2

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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