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
 LYS-75   MET-76  6.9 6.3 71.7 -77.6 26.5 62.5 -5.6
 MET-76   LYS-77  5.7 4.5 16.6 -19.1 58.7 72.0 3.5
 LYS-77   ASP-78  2.5 1.1 37.2 -36.0 61.4 41.7 13.3
 ASP-78   THR-79  5.9 2.1 -45.2 23.6 141.3 147.1 -30.3
 THR-79   ASP-80  7.3 4.0 143.3 -52.9 33.8 67.3 85.8
 ASP-80   SER-81  4.2 3.1 58.0 -6.3 65.7 29.5 45.9
 SER-81   GLU-82  5.5 5.3 27.9 13.4 50.8 69.3 18.9

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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