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-74   LYS-75  8.1 8.6 163.9 13.8 159.1 146.7 100.2
 LYS-75   MET-76  8.5 5.6 -165.0 5.9 63.2 25.3 -131.5
 MET-76   LYS-77  8.2 5.3 15.1 -43.5 78.9 88.3 79.9
 THR-79   ASP-80  4.2 3.1 9.6 -55.9 99.6 148.7 21.1
 ASP-80   SER-81  4.4 3.9 48.3 -20.2 86.3 108.4 6.0
 SER-81   GLU-82  2.0 3.1 25.4 -3.5 150.4 148.4 -5.9

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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