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
 MET-72   ALA-73  13.5 13.6 4.9 -5.3 79.6 69.2 -0.3
 ALA-73   ARG-74  11.7 11.0 29.2 -19.6 96.6 99.5 3.4
 ARG-74   LYS-75  8.4 9.0 2.2 3.4 160.8 165.8 -2.5
 LYS-75   MET-76  8.6 9.3 6.0 -23.1 115.1 99.1 5.6
 SER-81   GLU-82  4.0 2.2 -143.7 17.3 27.8 29.8 93.8
 GLU-82   GLU-83  2.0 1.0 -2.5 8.3 42.6 66.2 -4.5

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