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  5.9 6.1 -7.6 11.4 118.5 117.5 -1.3
 MET-71   MET-72  5.7 6.5 -0.6 -5.3 121.9 132.6 -2.5
 MET-72   ALA-73  2.3 3.5 1.3 9.1 33.6 32.2 5.9
 ALA-73   ARG-74  2.8 3.6 6.7 -20.3 46.1 51.9 -6.8
 ARG-74   LYS-75  5.4 6.9 -22.0 -43.4 107.8 109.3 -11.7
 LYS-75   MET-76  4.9 7.7 14.4 63.3 24.5 72.3 30.7
 MET-76   LYS-77  2.6 5.4 -114.1 -105.5 89.7 137.8 -71.2
 SER-81   GLU-82  9.2 9.2 -133.8 -30.3 94.9 106.6 99.0
 GLU-82   GLU-83  12.2 12.9 164.5 151.7 104.1 107.6 12.2

Downloading Image

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