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
 THR-70   MET-71  6.7 5.7 -2.9 0.0 114.2 130.3 -0.5
 MET-71   MET-72  7.0 6.2 -15.8 9.6 120.8 119.0 -2.7
 MET-72   ALA-73  3.7 3.2 13.9 -25.3 29.2 51.7 -6.6
 ALA-73   ARG-74  3.5 2.1 32.6 14.6 48.2 34.1 22.8
 ARG-74   LYS-75  6.7 4.7 165.1 -17.6 76.4 30.3 53.2
 LYS-75   MET-76  6.5 3.8 168.9 59.9 24.8 63.1 -73.4
 MET-76   LYS-77  4.3 4.4 -8.9 6.5 93.8 167.5 -1.1
 SER-81   GLU-82  7.4 7.2 -121.1 67.7 97.9 102.3 12.0
 GLU-82   GLU-83  10.5 10.0 -49.2 28.0 79.8 66.3 0.7

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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