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
 ALA-73   ARG-74  4.1 3.6 -1.8 3.7 127.3 135.8 -0.9
 ARG-74   LYS-75  7.1 6.2 -17.2 -4.6 106.4 114.7 -0.3
 LYS-75   MET-76  6.4 5.5 17.0 86.3 18.9 43.1 62.3
 MET-76   LYS-77  4.3 2.2 -170.5 -10.0 94.6 153.3 93.9
 SER-81   GLU-82  8.4 8.1 -100.1 50.0 92.7 106.0 -0.2
 GLU-82   GLU-83  11.7 11.2 -45.6 17.5 81.2 66.9 1.4

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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