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
 LEU-69   THR-70  1.9 1.7 -17.5 4.3 40.4 37.8 9.5
 THR-70   MET-71  3.9 3.9 -5.3 9.4 65.2 65.8 0.5
 MET-71   MET-72  3.5 4.2 -3.0 -5.8 59.2 52.4 2.7
 MET-72   ALA-73  1.5 2.1 -4.1 6.0 29.8 29.5 -1.3
 ALA-73   ARG-74  1.3 0.9 3.0 11.0 132.2 131.9 -5.7
 ARG-74   LYS-75  3.1 3.8 -26.8 -7.5 75.9 63.8 6.6
 LYS-75   MET-76  3.9 4.6 21.8 84.7 155.1 131.0 -49.0
 MET-76   LYS-77  3.0 2.9 176.4 8.8 93.1 154.5 67.0
 SER-81   GLU-82  9.2 10.2 56.0 63.6 97.6 80.8 -27.9

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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