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  12.5 13.3 -15.6 2.2 40.6 43.3 0.7
 MET-71   MET-72  10.8 8.5 -1.2 -3.6 137.0 27.0 -1.3
 MET-72   ALA-73  9.3 8.2 -5.9 6.7 84.3 79.9 -0.8
 ARG-74   LYS-75  5.8 6.1 -31.2 -0.9 104.0 38.6 11.8
 LYS-75   MET-76  6.8 8.1 26.2 69.2 75.6 79.3 33.7
 MET-76   LYS-77  3.8 11.2 -168.7 -4.6 108.4 108.4 -71.2
 SER-81   GLU-82  8.4 8.6 -135.0 73.8 40.4 62.7 37.5
 GLU-82   GLU-83  11.6 11.7 -38.9 15.5 115.9 117.4 1.1

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